What is difference between A.C & D.C Resistance ?

Question Posted / deepak

4 Answers
8061 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What is difference between A.C & D.C Resistance ?..

Answer / ashok

There is no polarity for resistance. In AC consider voltage
and in DC current should be consider

Is This Answer Correct ?

5 Yes

1 No

What is difference between A.C & D.C Resistance ?..

Answer / dileep t

The A.C resistance is always greater than D.C resistance.
A.C resistance is about 1.62 times D.C resistance. In D.C
the frequency is zero . Hence the total impedance of a line
will be only resistive.
z=R+XL
since f=0;XL=0
Z=R.
But in A.C f is not equal to zero. Hence Z will be large as
compared with D.C

Is This Answer Correct ?

4 Yes

0 No

What is difference between A.C & D.C Resistance ?..

Answer / suresh

d.c resistance is only resistance due to the virtue of
conductor property only, a.c resistance is due to both
virtue of conductor property and skin effect.

Is This Answer Correct ?

3 Yes

0 No

What is difference between A.C & D.C Resistance ?..

Answer / blade

In AC the movement of electric charge periodically reverse.
In DC the movement of electric charge is only in one
direction.

Is This Answer Correct ?

5 Yes

5 No

Post New Answer

More Electrical Engineering Interview Questions

Why we need to carry out knee point voltage test of current transformer ?

1 Answers Power Grid,

What happens when generator is running with leading power factor on it say -0.96. what are the effects of it on alternator and the other generators operating in parallel to it.

2 Answers

how to determine motor size for a fan application?

0 Answers EDC,

WHWT IS USE OF VACCUM CIRCUIT BREAKER

4 Answers

what is pressure relief valve?where it is used????

4 Answers Mecon,

What is d diff. btw MCB & MCCB???

1 Answers Emerson,

WHY WE USE 4-20mA

5 Answers Coca Cola,

Why transformer rating in kVA not in kW?

5 Answers ABB,

How to convert farad to kvar. both are the unit of capacitor.

5 Answers College School Exams Tests, UltraTech, Vikram Ispat Industries,

While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 Answers

HOW DO YOU PROVE THE HIGH VOLTAGE CABLES OR BUSBAR IS DEAD EVEN AFTER IT IS DE ENERGISED

6 Answers

what is the dis-advantage of 3 phase 3 wire energy meter?

1 Answers Exide, Nelco,

For more Electrical Engineering Interview Questions Click Here