Electrical Engineering

Regardless of the microfarad value of a cap(s), the total voltage of the circuit will equal the available voltage available. I.e. 10V applied to several (or one) cap'(s) will eventually reach the available voltage (Source). This is due to the fact that a cap is not resistive, or inductive.

You may be able to find a multipication operator in your assembler instruction set, but for something this basic, I would recommend developping your own specialized version using shift registers and addition - this will be much more efficient in clock cycles as opposed to a canned multiplier.

You increase the length of leads of a capacitor by splicing extra length onto them.

I'm no expert but I believe the high frequency is due to the number of poles (North-South) of the pilot exciter. The frequency of a generator is directly link to its speed and the number of poles. Most generators will run at 1800RPM and will have 4 poles to achieve 60Hz. The pilot exciter being on the same shaft will also run at 1800 rpm but will probably have more then two poles. finding the formula for frequency of a generator should help you in answering your question.

The next question should be why would you build a pilot exciter with multiple poles and a high frequency? The output of the pilot exciter is going to be rectified to DC so it would make sense to do it with a high frequency and get a smoother DC signal out of the rectifier.

Yes, a switch is a device that stops and starts current flow in a circuit.

A capacitor will appear to be an open circuit to a DC source, but only after equilibrium is reached.

Proof:

A capacitor resists a change in voltage. The equation is ...

dv/dt = i/c

... which means that the rate of change of voltage in volts per second is equal to current in amperes divided by capacitance in farads.

A DC source has constant voltage. If you charge a capacitor to a constant voltage, then, at equilibrium, dv/dt is zero. This means that i must also be zero, since c is not zero.

Ohm's law states that resistance is voltage divided by current. The limit of this is that, when current is zero, then resistance must be infinity. Therefore, the capacitor will have infinite resistance and appear to be open circuited.

Metal. The central part of the rotor is generally made of steel or other high strength material. The coils of wire that create the magnetic fields, and thus power the motor, are almost universally copper, due to its high conductivity.

zener diode

When digging it's possible to hit an underground power line. Hitting an underground power line can be very dangerous and is similar to having contact with an overhead line.

Load of a series R-L-C circuit is given by R+j(XL-XC).

where R=resistance,XL=reactance,Xc=reactance.

Load will be capacitive if (XL-XC)<0.

or, XC>XL

or,1/(wC)>wL

[w=2*pi*n where n=frequency,C=capacitance,L=inductunce]

therefore

n<1/(2*pi*sqrt(LC))

The formula in getting the energy ohm's law is V = IR.

Any nonlinear load on a system generates harmonics. Exampes are the magnetic core of a transformer or equipment which uses rectifiers to produce direct current. The triplen harmonics are unpopular because they add on a three-phase system, so they produce current in the neutral, which a three-phase system in balance does not.

is this an espresso maker for a car?

if so its a pretty large heating element and will need 12v at about 30A

it doesnt matter if its dc or ac to power the heater

the ac espresso makers are around 1000w and will make more faster

heating appliances need lots of power and dont care about ac or dc

its easier to get one in the correct voltage

Depends.

Lamps can certainly be built to work on either AC, or DC, or both. But some lamps, particularly those with electronics in them, either a dimmable lamp, or a fluorescent lamp, may only work with one type of electricity.

You size it by the current required by the secondary, and the primary will be smaller wire.

It cuts off the signal to the speakers, ior in some cases simply instantly reduces the volume level to zero.

the main function of transformer is to change the magnitude of Voltage. difference between step up and step down is step up will change the input voltage into a larger magnitude of output while step down is vice versa

Ohms law is: V = I x R (voltage = current x resistance) ... therefore the larger the resistance the larger the voltage drop across that resistance.

It depends on the configuration of the ammeter. If you have an ammeter with red on one side, green on the other, and a balance point in the center, the needle will go into the red when when load is increased in relation to the charge. If the load is decreased in relation to the charge, the needle will go into the green.

If you have an ammeter with a numerical value (i.e. 30, 40, 50, etc.) then the needle will go up to the value of the load present in the system not in relation to the charge.

It could be to filter out outside interference from getting out or in. Radio equipment

needs good filtering in the supply.

0.2 and 2.5

To convert the high voltage on a feeder line to a lower voltage that can be used on the plant floor you use a transformer.

Small electrical transformers typically are stored in a cool, dry environment to reduce insulation deterioration. Large transformers are typically stored in a similar way, however they are usually only stored for short periods are demand for large transformers is very high and power companies usually find uses for them rapidly.

the first robot was designed by Leanardo Divinchi in 1495. The first robot was designed in 1495 by Leanardo Divinchi.

If you measure a small resistance with the megger set in Mega ohm range you get a very tiny and inaccurate result, and If you measure a huge resistance with the megger set to mega ohm range it will bottom out. To get the most accurate measurements you want what you're measuring to be about the same as the scale you're using.