Question

15.
A wire of resistance 4ohm is stretched to twice its
original length. The resistance of stretched wire
would be :-
(1) 16 ohm
(2) 2ohm
(3) 4ohm
(4) 80hm​

Answer 1

Answer:

16ohm is ans.

Explanation:

because if length is doubled area will be halfed and hence resistance will be 4 times the orignal