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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
Where can one purchase a Yagi Antenna?
Yagi antennas may be purchased online through sites such as Amazon or eBay. Alternatively, someone may wish to buy an antenna directly from the manufacturer. If one wishes to buy from the manufacturer, ZDA Communications, one should call 803-608-4122, send a fax to 803-736-5310, or send a letter to 100-3 Forum Drive Suite 192 Columbia, SC 29229.
Convert 600 dc volts into ac volts?
This action takes inverter equipment that is explained in the link below.
What are transformer used for?
Transformers change the numbers of volts, watts, and amperes of the electrical current, from those in the power source to those needed for the mechanism.
Generally, transformers are used to change the input voltage to a desired value of output voltage. Typically, transformers step up (increase) the voltage, or step down (decrease) the voltage. There are many applications and uses for transformers - most of these embed the transformer in another device, so you do not see (or even know about) the transformer.
A computer power supply, for example, has a transformer embedded in it that converts the incoming 120 volts into both 12 and 5 volts. As another example, when travelling from North America to Europe, travelers often take with them an adapter that includes a step-down transformer that converts the European 220 volts into the 120 volts that the North American appliances require. Note that the transformer cannot change the frequency of alternating current, and so some 60 Hz North American appliances will not work properly in Europe, even with a proper step-down transformer, because European power is distributed at 50 Hz. Similarly, some 50 Hz European appliances will not work properly with 60 Hz North America power, even with a proper step-up transformer.
Transformers are also included in adapters for electronics, such as for a cell phone charger. A transformer inside the adapter reduces the incoming 120 volts into a lower voltage (sometimes, 3, 5, 6, 9, 12 or some other value of volts) that the cell phone can accommodate. Such electronic adapters (and the computer power supply, noted in the example above) often include a rectifier that also converts the alternating current (AC) into direct current (DC), which reduces peak-to-peak voltage without affecting RMS (root mean square) voltage.
Most transformers have fixed ratios, meaning the output voltage is always a constant fraction of the input voltage. The output of these fixed ratio transformers will fluctuate in proportion to the fluctuation of the input voltage. Some transformers are variable ratio, meaning you can adjust (either manually or automatically) the ratio of output to input voltages. Automatic variable ratio transformers are typically used to output a constant voltage, regardless of how much the input voltage fluctuates.
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Leading and lagging power factor?
The terms, 'leading' and 'lagging' refer to what the load current is doing, relative to the supply voltage (Phase difference) -never the other way around. If the current is leading the voltage, then the power factor is 'leading'; if the current is lagging the voltage, then the power factor is 'lagging'.
A relay is an electro-magnetic switch which is useful if you want to use a low voltage circuit to switch on and off a light bulb (or anything else) connected to the 220v mains supply.
How do you connect 4 ohm speaker to 16 output amplifier?
No Problem to do this, but there are really no amplifiers with an output impedance of 16 ohms on the market. All loudspeaker amplifiers have an impedance of less than 0.5 ohm. Scroll down to related links and look at "Impedance bridging - Wikipedia".
Why a double coil transformer does not work on a pure DC voltage source?
According to Faraday's Law only if there is change in flux linkage of a conductor then current is induced between mutual inductors.
Now DC will induce a constant a constant flux in the transformer core, consequently in the secondary coil. So constant flux cannot induce a current in the secondary.
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S10 blazer reads high voltage?
The s10 uses an alternator and regulator to produce voltage. A high voltage is most likely caused by a faulty voltage regulator.
Force transducers are also commonly recognized as force sensors. A force sensor is described as a transducer that converts an input mechanical force into an electrical output signal.
Does electrical resistance depend on temperature and bias voltage?
Electrical resistance depends on the temperature but not the biased voltage.
AnswerIt's resistivity that can be affected by temperature, which means that resistance is indirectly affected by temperature.
How is a non conducting diode is biased?
was the last ruler and king of the k-iche-people, in the highlands of what is now guatemala
What are the reasons for conducting transformer turns ratio?
The reason for conducting transormer turns ratio is to determine if the transformer is a step-up or step-down.
AnswerTo determine the turns ratio if the turns ratio is unknown.
How charging and discharging of capacitors happened?
in the capacitor they have constant voltage wen supply is given the capacitor get charged(high voltage)and discharge energy wen the voltage is low below the applied voltag.
What changes must be made to a 3-bit counter to make it a 4-bit counter?
One jk flip-flop with j=k=1 should be added to the system so that it's modulus becomes 16 instead of 8.
A series RC circuit will have a phase shift between 0 and 90 degrees?
If there are only a resistor and a capacitor in the circuit, then the phase shift will indeed be between 0 and 90 degrees. When the resistor and capacitor are in series, the phase shift will be negative when the capacitor is connected to a source voltage and the resistor is the load. The phase shift will be positive when the resistor is connected to the source. The lower the values of R and C, the higher the frequency bandwidth.
With the resistor and capacitor connected in series and the two parts connected to a current source, the phase shift will be negative. At high frequencies, the output voltages is lower, and the circuit appears as a very low impedance. At low frequencies, the circuit looks more like a resistor. Again, the phase shift will be between 0 and 90 degrees.
CommentThe correct term is phase angle, not 'phase shift'. By definition, the phase angle is the angle by which the load current leads or lags the supply voltage. For an RC circuit, the current leads the voltage, so the phase angle is a leading phase angle.
If the resistance in ohms is higher than the voltage what does that mean?
Voltage is not measured in ohms. It is measured in volts.
What is the function of base collector and neutral in transistor?
The collector is connected to a input voltage that is always on, like the psu powering the entire circuit, the base connected to an output on an IC (which is feeble compared to the supply voltage) and the "neutral" which is called the emitter is connected to the power input on something that requires lots of power e.g. a solenoid or relay.
Advantages of Field-effect Transistors?
What is the meaning of transistor in processor?
It is used in the control logic and for representing controlled data.
Basically a transistor has two inputs where one of the inputs decides whether or not to output the other.
Imagine you have a vacuum cleaner. If the vacuum cleaner is on then the following two conditions are met:
1. The cable is connected to the wall.
2. You have the switch in on position.
These two conditions represent the two inputs in the transistor (both being "on" if you can hear your vacuum cleaner).
The output is represented by whether or not the vacuum cleaner is on.
The switch decides whether or not to let whatever electrical signal you may have through to the vacuum cleaners engine.
If switch is on then it outputs the signal from the cable. If the cable is not connected there will still be an output but it will be an "off".
Sorry about the potentially confusing analogy.
What is meant by the equivalent impedance of a parallel ac circuit?
This is similar to "equivalent resistance", but impedance is a more accurate concept in the case of AC.
The equivalent resistance (or equivalent impedance) means that if you replace all the resistances under consideration with one equivalent resistance, the result on the circuit will be the same.
This is similar to "equivalent resistance", but impedance is a more accurate concept in the case of AC.
The equivalent resistance (or equivalent impedance) means that if you replace all the resistances under consideration with one equivalent resistance, the result on the circuit will be the same.
This is similar to "equivalent resistance", but impedance is a more accurate concept in the case of AC.
The equivalent resistance (or equivalent impedance) means that if you replace all the resistances under consideration with one equivalent resistance, the result on the circuit will be the same.
This is similar to "equivalent resistance", but impedance is a more accurate concept in the case of AC.
The equivalent resistance (or equivalent impedance) means that if you replace all the resistances under consideration with one equivalent resistance, the result on the circuit will be the same.
What determines the strength of the magnetic field when current flows through the conductor?
"If the conductor is wound into a coil the magnetic lines of flux add to produce a stronger magnetic field... Another factor is the amount of current flowing through the wire" (from Delmar's Standard Textbook of Electricity: Fifth Edition, Unit 4 - Magnetism, pages 111-112)
The strength of an electromagnet is proportional to its ampere-turns; determined by multiplying the number of turns of wire by the current flow.
What are parameters in a circuit?
if by parameters, you mean parts, any circuit needs three things. A source, like a battery, a load, like a lightbulb, and conductors, eg. wire.
