Question

Answer the following questions using graph

Answer 1

Direct current and Alternating current ...cause in the two cases only Alternating current changes it's frequency and hence t varies.

Answer 2

Hey dear here is your answer...!!!

a) i)DC Current ii) AC Current

b)DC Current source ->Battery cell
AC Current source -> Tube light

c) Frequency of AC current in India is 50 Hz

d)DC Current ->In this the electric charge flows only in one direction
whereas in
AC Current. -> In this current changes its direction periodically ..

DC Current is used in small purpose
while AC Current is used in big purpose..

hope it may help u !!;