The opposite direction of conventional current?
It doesn't always do so, but it does, in the case of an electron current.
"Conventional current" is, by definition, the equivalent of a flow of positive electric charge. So, if a current consists of positive carriers (e.g., holes, or positive ions), the conventional current flows in the same direction as the current carriers. On the other hand, if the current consists of negative carriers (like electrons - the most common carrier for electric current), the electrons flow in one direction, but the conventional (positive, fictitious you might say) current flows in the other direction.
On a macroscopic scale, it is often useful to forget about the actual current carriers; for example, an electron current flowing to the left, and a current of positive ions flowing to the right, will have the same effect on a magnetic field.
It doesn't always do so, but it does, in the case of an electron current.
"Conventional current" is, by definition, the equivalent of a flow of positive electric charge. So, if a current consists of positive carriers (e.g., holes, or positive ions), the conventional current flows in the same direction as the current carriers. On the other hand, if the current consists of negative carriers (like electrons - the most common carrier for electric current), the electrons flow in one direction, but the conventional (positive, fictitious you might say) current flows in the other direction.
On a macroscopic scale, it is often useful to forget about the actual current carriers; for example, an electron current flowing to the left, and a current of positive ions flowing to the right, will have the same effect on a magnetic field.
It doesn't always do so, but it does, in the case of an electron current.
"Conventional current" is, by definition, the equivalent of a flow of positive electric charge. So, if a current consists of positive carriers (e.g., holes, or positive ions), the conventional current flows in the same direction as the current carriers. On the other hand, if the current consists of negative carriers (like electrons - the most common carrier for electric current), the electrons flow in one direction, but the conventional (positive, fictitious you might say) current flows in the other direction.
On a macroscopic scale, it is often useful to forget about the actual current carriers; for example, an electron current flowing to the left, and a current of positive ions flowing to the right, will have the same effect on a magnetic field.
It doesn't always do so, but it does, in the case of an electron current.
"Conventional current" is, by definition, the equivalent of a flow of positive electric charge. So, if a current consists of positive carriers (e.g., holes, or positive ions), the conventional current flows in the same direction as the current carriers. On the other hand, if the current consists of negative carriers (like electrons - the most common carrier for electric current), the electrons flow in one direction, but the conventional (positive, fictitious you might say) current flows in the other direction.
On a macroscopic scale, it is often useful to forget about the actual current carriers; for example, an electron current flowing to the left, and a current of positive ions flowing to the right, will have the same effect on a magnetic field.
How can you detect a direct current flowing thugh a wire?
you need to test it with a multi meter, set on the right settings. if you knew the voltage you could get an appropriate light bulb to suit the voltage and put that across the wire to test if there is current.
How is current lost in a circuit?
Current can be lost in a circuit due to resistance in the conductive materials used, such as wires or components. This resistance causes some of the energy carried by the current to be converted into heat. Additionally, poor connections or faulty components can also lead to current loss in a circuit.
What are the types of tap changing transformer?
The simplest type of tap-changing mechanism is a rotary switch which allows the distribution company to select one of several 'tapping' (connection) points on the high-voltage side of a transformer. This enables the turns-ratio of the transformer to be adjusted to slightly elevate or reduce the output voltage if required. This type of tap changer is termed an 'off-load' tap changer, because it cannot be operated when the transformer is energised because the winding is temporarily disconnected as the mechanism's contacts move from one tap to the next. Off-load tap changers are operated manually, using a handle located outside the transformer -after the transformer has been de-energised, isolated, and safety earths (ground) applied.
More complicated is the motor-driven 'on-load' tap-changing mechanism. It, too, alters the turns-ratio of a transformer, but this is done (usually) automaticallyaccording to changes in load. Unlike the 'off-load' mechanism, the high-voltage winding is never temporarily disconnected as the mechanism's contacts move from one tap to the next. This is because a pair of contacts is involved. One contact moves to the new tap position while the second remains at the first tap connection; when this has been done, the second contact follows the first onto the new tap position -so there is no break in the circuit. Additionally, there might be surge-suppressors fitted, to limit current surges during the tap-changing operation.
Tap changers are always fitted to the high-voltage windings, where the current is lower -thus enabling smaller contacts to be used.
Block diagram mti radar and its working?
In an MTI (Moving Target Indication) radar system, the block diagram consists of a transmit/receive antenna, a duplexer to switch between sending and receiving modes, a radar signal processor to detect moving targets, and a display unit for visualization. The radar sends out a series of pulses and examines the return signal to detect targets with a non-zero Doppler shift, indicating movement. The radar signal processor filters out stationary clutter and focuses on moving targets, displaying their position and velocity on the radar screen.
Which of these is a metal wire that allows electrons to flow through it?
Copper wire is a common metal wire that allows electrons to flow through it easily due to its high electrical conductivity.
Faraday's law of electromagnetic induction states that a voltage is induced in a circuit whenever there is a changing magnetic field that links the circuit, and the magnitude of the induced voltage is proportional to the rate of change of the magnetic flux.
Reverse bias breakdown due to impact ionization is when electrons are accelerated by the electric field to such high speeds that they knock other electrons out of the atoms they collide with. This process releases a large amount of energy, which can cause the breakdown of the material.
Zener tunneling is when the electric field is strong enough to cause the electrons to tunnel through the potential barrier. This process can also cause the breakdown of the material.
In what part of the circuit do the electric charges releases most of their energy?
The component with the highest resistance in a series circuit will have, or "drop" the most voltage across it. All of the components in a series circuit will have the same amount of current flowing through them but not the same voltage drops if the resistances are different. More resistance more voltage across it, less resistance, less voltage across it.
If no current flows through a load how much energy does it receive?
If no current flows through a load, then no energy is received by the load. Energy is transferred through the flow of current, so without any current, there is no energy transfer to the load.
Why do inductors resists a change in current?
An inductor charges and discharges. When an alternating current come up, the positive signal of the current quickly charges up the inductor. when the negative signal part of the same cycle comes up the inductor develops a potential to opposes it. this is because any charge developed opposes if there is a change or break or whatever for that matter, in supply. so, the negative signal which is basically a change in signal when approaches the inductor the charge developed across it opposes it and as the charge developed thanks to the positive part of the signal is used up to oppose the negative part of the same signal, basically the charge is zero. thus an alternating current or high frequency current for that matter, does not pass through an inductor.
CommentI think the above answer has confused inductance for capacitance! No charges are involved with inductors.
Whenever current changes in an inductive circuit, a voltage is induced into that circuit. The magnitude of the induced voltage depends on the rate of change of current. The direction of the induced voltage is such that it opposes the change in current -for example, if the current is reducing in value, then the induced voltage will try to maintain that current.
AC/DC is a rock band from Australia formed in 1973. While some original members have passed away, the band continues to perform with surviving members and new additions.
Can I Use portable 12v 1200amps charger for 375 A garden tractor battery?
Only if the voltage is the same (12v battery and 12v charge) and there is a lower amperage setting on the charger like around 10, maybe 30 but for small batteries 30 amps is a lot of current and they may get to be too hot warping plates, boiling acid away, and melting the case! 1200 amps... yeah, that's WAY too much. Don't use that setting!
What current rate in volts and amps is life threatining for human being?
The dangerous amount of current is not in the amp range but in the milliamp range as per the following. One amp is equal to 1000 milliamps
Milliamps are dangerous
Less than 1/2 milliamp no sensation
1/2 to 2 milliamps Threshold of perception
2 to 10 milliamps muscular contraction
5 to 25 milliamps painful shock (may not be able to let go)
Over 25 milliamps Could be violent muscular contraction
50 to 100 milliamps Ventricular fibrillation
over 100 paralysis of breathing.
What is the shape of magnetic lines force in case of a straight current carrying conductor?
The shape of the magnetic field lines around a straight current-carrying conductor is circular, with the conductor at the center of each circular loop. These magnetic field lines form concentric circles around the conductor, perpendicular to the direction of the current flow.
What is effect of stress over skin resistance?
the skin resistance increases to a large amount because of the sweating
due to stress,
for example-our finger tip become slightly wet when we take stress and its resistance increases
Can you charge a 6 volt battery with a 12 volt battery charger on slow 2amp charge?
It is not recommended to charge a 6 volt battery with a 12 volt battery charger as it can damage the battery. The higher voltage can overcharge the battery and cause it to overheat. It is important to use the correct charger with the matching voltage to prevent damage to the battery.
Can you charge a 6 volt battery from a 12 volt source?
The simple answer is NO. Why not use a simple 6 volt power suppy from some junked piece of audio or telephone equipment, Just watch the polatiy when you make your connections.
Using 12V on a 6V battery can fry your battery but not the otherway around.
If voltage is high will the resistance be high?
The electric resistance is related to the diameter and extension of the wire submitted to a determined voltage which will determine the electric current flowing into the wire.
AnswerVoltage has no effect on resistance. Resistance is determined by the length, cross-sectional area, and resistivity of a material (resistivity is affected by temperature, so temperature indirectly affect resistance).What are the applications of variable DC power supply?
Variable DC power supplies are commonly used in electronics labs, production lines, and testing environments. They are used to power and test electronic devices such as electrical components, circuits, and sensors. Variable DC power supplies are also used in research and development for prototyping and experimenting with different voltage levels.
When a current flows through a wire what direction around the wire does the magnetic field flow?
When a constant current flows in a long straight wire, the magnetic field lines form circles around the wire.
The direction of the magnetic field may be determined by the "right hand rule." If you position your right hand so the thumb points in the same direction as the current flows, then curling the fingers produces the approximate shape of a circle and the direction that your fingers point is the same direction as the magnetic field lines point in the circles that the field lines form. This is true inside and outside the wire. The field strength gets smaller the further away from the wire that you are and it also gets smaller as you go towards the center of the fire. It is a maximum at the surface of the wire.
Caveat: The above description is exact only for infinitely long wires, but it is also very accurate for long wires where the straight stretch of wire is perhaps a hundred times longer than the wire is wide and no other part of the wire is very close.
What kind of circuit is a power bar?
A power bar is a type of parallel circuit where multiple outlets are connected to a common power source. This allows multiple electronic devices to be connected and powered simultaneously.
Why capacitor is said to be a reactive component?
In electrical or electronic circuits, impedance can be said to have capacitive or inductive components. Capacitors cause capacitive impedance, and coils (chokes, transformers, loudspeakers, etc.) cause inductive impedance.
A capacitor is said to be a reactive component in an AC circuit because it holds charge, then releases it, causing a phase shift in the output current. This phase shift in current equates to a phase shift between current and voltage. Reactive power is defined as a phase shift between current and voltage.
Waveform is converted to 180 phase in inverting Amplifier?
An inverter, or inverting amplifier inverts the signal (hence the name). So if you have a sine wave in (start at zero, increase to 100%, then drop back down to zero...), you will get a negative sine wave out (start at zero, decrease to -100%, then increase back to zero...). This is equivalent to saying the input is phase shifted 180 degrees.
Can you charge a 500mA battery with a 1300mA charger?
Yes, you can charge a 500mA battery with a 1300mA charger. The battery will only draw the amount of current it needs for charging, so it will not be harmed by the higher current output of the charger. However, make sure the charger voltage matches the battery's voltage requirement.