Electronics Engineering

You can compare a power supply to a waterfall of energy.

The high of the waterfall is the output voltage, and the quantity of water in the river is the current intensity.

The power generate is a combination of the intensity and the voltage: P=UI (the effective power is the result of the multiplication of the voltage and the intensity).

That explain why higher the voltage is, less intensity is needed to have the same power.

It is the same in a waterfall, higher it is, less water you need to make a mill turning.

a long string of numbers

It depends on the turns ratio of the transformer.

If the two 5 ohm resistors were in series, then the current would be 1.2 amperes. If they were in parallel, then the current would be 4.8 amperes.

Ohm's Law: Current = Voltage divided by Resistance

RSeries = Summation1toN RN

RPARALLEL = 1 / Summation1toN (1 / RN)

Not especially well. However, the oxidation is usually limited to the surface, so the pure silver "core" will still conduct.

Approximately 70

If you mean the capacity of the capacitor then,

Factors are:-

Area of of overlap of the plates

Separation of the plates

How good is the insulating material between the plates (the dielectric)

If you mean how large a charge can be stored then,

Factors are:-

The capacitance of the capacitor (C).

The applied voltage (V).

Charge Q =CxV

V cannot exceed the dielectric's breakdown voltage.

When the frequency is zero(i.e when dc power is supplied), capacitor is open is treated as open circuit having infinite resistance.

Zenor diode is allow to flow current in forward direction and it can also allow current in reverse direction when the voltage is above the certain value.

You will have to have some computer skills to learn how to do this. You have to put in the right code in order to get it to work.

Four of them cascaded in such a way that true(uncomplemented) output of one is connected to input of next stage where each stage is providing a divide by 2 function.

voltage drop is the loss or drop that occured across the element so that voltage gets down and current increases across the element and power loss is like i2r loss and like wastage of power without consuming

because of the residual magnetic flux that exists in the motor initially due to the poles

In carbureted cars, this is completely an analog function, from pedal to carburetor throttle body. On electronic fuel injected cars, this is part analog and part digital. The part where your foot controls the position of the accelerator is analog, then this position information is digitized and sent to the cars control computer where the position information is translated into an engine RPM request. This digital request is sent to a sophisticated fuel/air control algorithm which increases/decreases the injector activation control period in relation to the volume of in rushing air measurement. The digital side of an injection control scheme is a pretty delicate balance of engine part design knowledge, such as cam lift/open duration/close timing. This is why if you change a physical feature of an engine that is computer injection controlled, the computer needs to be reprogrammed in order to take advantage of the change.

there is no forward breakdown voltage for any diode

Connect the SCR in series with the armature or field and control the firing angle of the SCR which in turns determine the current flowing to the armature or field.

Breakdown depends on the electric field value in FETS (as in diodes and such, where you can find a junction).

Theoretically, you need to

- dope less the junction region of your device (like p-i-n diodes, the i (intrinsic) region is not doped in order to reduce E field peak, which occurs near the center of the device).

- raise the length of your device

Both of these two solutions will have the drawback of increasing your ON resistance.

At circuit design level, you can protect your devices with clamp diodes or something similar.

When base signal is given to transistor at the time of forward bais of emitter and collector the current flows from high potential to low potential

Pulse width mod, pulse amplitude mod, pulse position mod, pulse code mod.

the magnitude is decided by the amount of flux, number of conductors, speed of the motor and the type of the winding used.

the polarity is decided by the direction of rotation of the motor and the direction of armature current flowing in the motor.

200 ohm

It is in a range of 1eV.

(eV=electron volt)

Work it out for yourself. The equation is: Z = E/I, where Z is the impedance, E is the supply voltage, and I is the load current.

each ics are made of transistors.and the ics are used in processors.