in trains i have seen the terminal which is connected at
the top of the train is positive .where is negative ?
track? i dont think so
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how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.
WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
Give atleast 20 alternating current apparatus and devices.
Define pole pitch?
previous year paper of ntpc bhel for degree in electrical enng
why did youi choose this career?
What is vacuum circuit breaker.define with cause and where be use it device?
explain different losses in a transformer.
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what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?
what is the formula of starting current of 3phase and 1 phase motor???
what is mean by parallel operation of permanent magnet generators
what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....