1- XC and the RC time constant are both measures of the reaction of C to a cha

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.

Question Posted / zavlaa

0 Answers
3366 Views
I also Faced
E-Mail Answers

No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Electrical Engineering Interview Questions

what is looping circuit in electrical lighting circuits?

5 Answers L&T,

what is difference between elr and R eartl realy.

0 Answers

we often use the word HT (high tension) line.or we say HT switch gear, whats does HT basically mean. is it different from high voltage.

2 Answers

hi... Can anybody give me description of type-2 coordination, IP protection, NEMA standards ? Thanks..

2 Answers KSEB,

what is MC 61 relay

2 Answers

which type of winding is used for high voltage & low current?

1 Answers GEB,

how a DC clampmeter works if DC cant b step up r down?

1 Answers

for high freq ac,why we first convert AC to DC and then DC to high freq.AC

0 Answers

what is excitor response of an excitor?

1 Answers

what is mean by current

17 Answers Wipro,

how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.

0 Answers

A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

0 Answers

For more Electrical Engineering Interview Questions Click Here