Electronics Engineering

V=IR

you are adding in parallel, so V is non-zero, because R is positive, I must have the same sign as V. Therefore your current will increase.

Current flowing through a device depends on resistance offered by that device.

I have a 433MHz transmiitter il sale you if you wont it my email is gregory_longworth@yahoo.com

central freqency of narrow band pass filter is the measure of difference between upper and lower cut off freqency

the circuit will pass waves of a lower frequency

electronic polarization

ionic or atomic polarization

orientation or dipole polarization

space charge polarization

the hours is followed by two zeros E.G:

24hr 12hr

17:00 = 5:00

A stand-by generator is for when power goes out for any length of time. The purpose of these generators is to return power to your house after a disaster. These are mainly used when hurricanes occur and power is out for weeks.

A depletion MOSFET is a MOSFET that is normally on. It outputs maximum current when the gate-source voltage is 0V. As the gate-source voltage increases, the drain-source channel becomes more resistive and the current decreases.

An enhancement MOSFET has the opposite behavior. It is normally off. It outputs no current when the gate-source voltage is 0V. As the gate-source voltage increases, the drain-source channel becomes less resistive and the current increases.

The materials being soldered.

Ohm's Law: voltage is current times resistance, so 8 amps times 2 ohms is 16 volts.

• Digital (discrete) or analog (continuous) channel

• Baseband and passband channel

• Transmission medium, for example a fibre channel

• Multiplexed channel

• Computer network virtual channel

• Simplex communication, duplex communication or half duplex communication channel

• Return channel

• Uplink or downlink (upstream or downstream channel)

• Broadcast channel, unicast channel or multicast channel

Current density is the amount of electrical current flowing in a unit of cross sectional area of that conductor. You'd look at the current flowing and the cross sectional area of the conductor and make a calculation from that. All you need do is decide on what unit of cross sectional area you wish to use. In wire, we usually use mils. Use the links below for more information.
Density current is the measure of the density of flow of a conserved charge

CAPACITOR

Explanation:

An interesting property of capacitors is that they will block DC after they become charged, but will (for the most part) allow AC to flow through. When a capacitor is fully discharged, DC can flow through it freely, but as it is doing so, the cap is gradually becoming charged. Finally, when it has reached its storage limit, the cap will not allow any more electricity to flow through it, and will act as a blocker on the circuit. This can be observed if you simply wire a capacitor in series with a simple circuit connecting a battery to a light. When the circuit first comes on, the light will turn on, but after some time (when the cap becomes fully charged) it will turn off. Exactly how long it takes this to happen depends on the capacitance of the cap; With very low-capacitance caps, it will probably happen faster than your eye can perceive, but it still will happen. If you remove the battery and simply leave the cap connected to the light, the light will turn on again as the cap flows into itself, acting like a battery, and the light will stay on until the cap fully discharges. So a cap blocks DC; If you think about it for a moment, you should be able to understand why they allow AC to pass through: AC keeps reversing its polarity. As long as the AC switches fast enough to prevent the cap from becoming fully charged in any direction, then the cap will partially charge in one direction, and as the AC polarity reverses, the cap will start to discharge, then charge in the opposite direction. Very low-capacitance caps may partially block the AC because they become fully loaded before the AC cycle is complete, however. TOO many words for an explanation yes it block DC and it acts as a storage of energy. charged or not charged it will block dc IF THE DC changes then more or less it will pass this levels because varying DC is AC after all,

base

A; The design i pretty forward but to find and choose a clock with multiple of 60 seconds and counting down is a not easy task. to display the results also has no particular problems. Why go trough the problems by $10 woth of gas the clock is free.

For any value turn the multimeter to the highest scale in the value that you are measuring. By doing this you will not overload the meter by using a lower scale to measure a higher value.

In a perfect inductor (one with no series internal resistance), the current lags the voltage by 90 degrees. If the inductor has series internal resistance, then the current will lag the voltage by less than 90 degrees - the more the resistance in series with the inductor, the smaller the angle. The tangent of the angle can be found from the ratio of the inductive reactance of the inductor to the DC resistance of the inductor.

That is, Tan (phase angle) = (2 x pi x frequency (Hz) x inductance (H)) divided by resistance (ohms)

eg, a 1 henry, 100 ohm inductor on 60Hz would give:

(2 x pi x 60 x 1) / 100 = 3.77; tan-1(3.77) gives 75 degrees lag of current behind voltage.

The cosine of this angle gives the 'power factor' for the inductor - that is, the amount of useful energy dissipated in the inductor. Cos 75 is about 0.25 - so 25% of the energy actually does useful work (heat) - the rest of the energy (75%) is returned to the supply mains when the inductor discharges its magnetic field.

It depends on the particular zener diode. Typically, they will pull 75 ma of current.

what is the diference betwean calculated and maesured value

this is very good

Here are a few easy and related equations.

V = Voltage, I = Current (amps)

R = Resistance, (Ohms)

V = I X R

R= V / I

I = V / R

Power = Watts = W, is expressed as V X I. Since V =I X R, W then also = R X I X I

Which is I **2 X R

Same as V**2 / R

So, if your I = 3 and your R = 3, and because I X R = V,

3 X 3 =9 Volts

(Note: capacitance and inductance can also influence the amount of current flow in a system. This resistance is referred to as reactance. Both reactances are a function of the frequency of the Voltage applied.)

Have a wonderful day. Bob

An analog or analogue signal is any continuous signal for which the time varying feature of the signal is a representation in respect to other time varying quantity, i.e., analogous to another time varying signal.

Any information may be conveyed by an analog signal often such a signal is a measured response to changes in physical phenomena, such as sound, light, temperature, position, or pressure, and is achieved using a transducer.

So, Analog signal is a medium to send information over distance ,the information cane be anything. The main disadvantage of Analog signals is they have larger noise .

Alternating Current is defined as the behavior of Electric charge. Alternating Current is the movement of Electric current which is periodic and attains both positive and reverse direction (positive and negative) in its propagation whereas Direct Current only attains itself in one direction i.e positive cycle only.

So,the difference is...Analog is the type of signals whereas Alternating is a behavior of Electric charge on its movement.