Question

In a dc motor, Why must the current to the coil be reversed twice during each rotation ?



kripya vistaar mai samjhaye ​

Answer 1

The current to the coil must be reversed twice during each rotation so that the coil keeps rotating continuously in the same direction.

A device called slip ring commutator helps in effectively changing polarity of coil, hence changing the current direction.

hope this helps

cheers ✌️✌️

Answer 2

Answer:

sry sister ..............,.............