Answer / sushil sharma

ac current changes its direction and magnitude while dc
current is unidirectional and remains steady in magnitude.

Answer / abid ali khattak

AC: means in electrical terminology (Alternating current.
its change its direction continueslly.
DC: means in electrical terminology (Direct current). its
doesn't change its direction.

Answer / koppu chowdaiah

ac means alternating current.It's magnitude is varying with time.In dc the magnitude is constant.ac has frequency but dc does not have frequency.

Answer / ibrahim

frequency,
i ac frequency exist
in dc frequency does not exist
this is the major diff between ac &dc

Answer / pawan

we can store electrical energy in terms of D.C,
but not store in terms of A.C

in india ac frequency is 50hz, but in foreign countries it is 60hz,whwt is the reason

9 Answers   SVIT,

A 11 KV motor is working. if the supplay is fail. what will happened with it's breaker? Trip / remain the same condition?

4 Answers  

why dc motor runs slowly when dc supply is given?

2 Answers   L&T,

How to calculate the size of the cable? for exp i want to use the load of 10HP

4 Answers  

what is cogging and crawling

0 Answers   Suzlon,

If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.

0 Answers  

i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

0 Answers   MTDC,

What is the difference between 2 wires RTD's and 3 wires RTD's.Kindly explain the wiring diagram.

1 Answers   QAFCO,

What is the difference between a fuse and a breaker?

0 Answers  

why the neutral of power transformer is always earthed?

1 Answers  

how can electricity is produced without water

6 Answers   Bescom,

How to determine alternating current frequency?

0 Answers