Question

In an electric circuit current becomes half when resistance is :-
A.removed B.doubled
C.halved
D.None of these

Answer 1

Answer:

(C)

Explanation:

Because as

Suppose

Take v= 220V

R=10ohm

So current would be = 22 ampere

If the resistance is halved then the

Current would be come 44-45

Answer 2

Answer:

C, when it is halved

Explanation:

as V/I = R

so I =I/

V/I/2= R

2V/I = R

or

V/I = R/2

so r is halved