Electrical Engineering

Depends on the motor size and the face type...of course.

A 'moment' is the product of force and distance. So, in SI, the unit of measurement is the newton metre(N.m).

The main difference between coherent and incoherent machine is the consistency in performance. A coherent machine has processors that work in a consistent manner.Ê

Contact arching is the action of an electricity flow that uses surround air as a conduit to sustain its charge. This action take place after a spark breaks away from an electric current.

This depends on how the motor and wiring. You'll need to provide more information.

Series / compound / shunt / differential / self or separately excited / is the rheostat in parallel or series to the field / is the rheostat on the shunt field or series field (if compound)

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introduction of electromagnetic interference on daily life

Count Alessandro Giuseppe Antonio Volta- an Italian Physicist

Gearmotors are electric motors that utilize a type of gear system on the output of the motor. This gearing arrangement is called a gear reducer or gearbox. The combination of an electric motor and gearbox reduces design complexity and lowers cost, particularly for motors built for high torque and low speed applications. In addition, gearboxes can be used as a means to reorient the output shaft in a different direction.

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emf produced by generator(E)=no. of turns in coil*rate of change of magnetic flux

so far i knew, the transformers are used to seprate dc component from ac component of supply fed into primary winding of coil. still if dc output value of ac input has to be calculated then it is v2*2/sqrt(pi)

where v2 is peak ac output voltage and is equal to v1*n2/n1

pi is a constant numerically equal to 3.14

thus the dc value is average value of output ac voltage

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volts times amps equals watts, a measure of power. Amps times hours equals amp-hours, a measure of electric charge. Electric charge times voltage is energy.

So 120 volts at 10 amps for 4 hours would pass 40 amp-hours of charge, the power would be 1200 watts and the energy would be 4800 watt-hours or 4.8 kilowatt-hours.

So volts times amp-hours equals energy in watt-hours.

Most do, but not all. Some have a separate exciter winding.

If it were less than a number of Megohms it would not be insulation.

208V is one standard in the US for light commercial 3-phase power. It measures 208V phase to phase and 120V phase to neutral. 230 (or 240)V refers (in the US) to the common service supplied to residential. It is single-phase, with two hots and a neutral; 120-0-120. One hot and the neutral (120V) is used for receptacles and small appliances, both hots (240V) are used for large appliances, such as stoves, ovens, air conditioning, and water heater.

Circulating fluidised bed combustion

I also have the same question. After some research, I understand that you cant just jump in and calculate this. You have to have alot of information about that spesific generator. I have found out that you can use some formulas from losses in transfomers.

The bandwidth of a signal is the width of frequencies between the highest and the lowest frequency.

So 500Hz - 50Hz = 450Hz bandwidth.

AE7HD

Voltage stabilizers are the circuits that are used to filter noise from the source voltage. DC voltage generated from a bridge network or diode network will contains voltage glitches. These glitches may cause serious problems to the operation of digital circuits. So a voltage regulator is used to filter these glitches. voltage stabilizer can be built using a voltage regulator ICs like 7805 for +5V, 7809 for +9V, 7905 for -5V, 7909 for -9V and so on.

this is a method to fined the fault in the underground wires.In this method we replace two arm of the wheat stone bridge with the testing wire and the another wire and calculate them using relation R1/R3=R2/R4.

For all practical purposes NO. The only voltage measured will be the voltage drop of the contact itself. This should be very low if the contact is good.

The current supplied to the filament for heating is defined as the Filament current.

whereas

When the filament is heated to a high temperature, the electrons are emitted. The flow of electrons form Cathode to anode is the tube Current.

There is none, glass is much stronger, but i suppose it depends on the use.

Yes. Provided that it has above 12 V output. I will. You must have a diode in place though.