what is difference b/t ac current and dc current

Question Posted / keyurlakhani

4 Answers
8112 Views
L&T, Meghana Engineers, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what is difference b/t ac current and dc current..

Answer / er. sanjana singh

ac current is flow in alternating nature & it have frequency.
dc current is direct current and flow in straight direction & dc current has no frequency..

Is This Answer Correct ?

11 Yes

4 No

what is difference b/t ac current and dc current..

Answer / sureshkumar

ac current has skin effect,corona losses and dc current does not having skin effect,corona in transmission lines

ac transmission can change voltage levels by using step-up transformers and in dc it is not possible

Is This Answer Correct ?

1 Yes

0 No

what is difference b/t ac current and dc current..

Answer / sureshkumar

in ac we can change voltage levels by using power transformers
and in dc can not change voltage levels because we not using power transformers

Is This Answer Correct ?

0 Yes

0 No

what is difference b/t ac current and dc current..

Answer / syamkumar

ac current changes it's magnitudeand it has frequency but
dc cureent doesn't changes it's magnitude and it didn't
have frequency.

Is This Answer Correct ?

2 Yes

4 No

Post New Answer

More Electrical Engineering Interview Questions

what is basically a pulse transformer?

1 Answers

how to select fuse in any circuit? if with fomula ?and examples also

1 Answers

if we know Fault level say 25 KA , How to decide busbar size for Distribution network of 1000 Amp Breaker ? Sample Calculation or Farmula Available or not ?

4 Answers TCS,

how is find out kwh step by step

0 Answers Voith,

Why current transformer is earthed??

2 Answers

1. What are the types of Transformer?

1 Answers Valdel,

what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

0 Answers Areva,

why electric shock due to dc is dangerous than that of ac

44 Answers

if our load is 65000 watts howcan we find out all char like cable size. mcccb etc

3 Answers

our factory is going under construction mean time transformer 1000 kva 2 nos &load break swithch 12 kv & 4 nos 750 kva 2 nos & 380 kva 2 nos generator to be errcted.how to arrange earth pits &how to earth connect & neutral pit how to calculate in earth bit size.

0 Answers

Single line diagrams for star to delta and DOL starters.

0 Answers

how to calculate the lightning arrester conductor @ no of earth pits required

0 Answers

For more Electrical Engineering Interview Questions Click Here