The resistance of 20 em long wire is 5 ohm. The wir~ is stretched to a uniform wire of 40 em length. The resistance now will be (in ohms)

The resistance of 20 em long wire is 5 ohm. The wir~ is stretched to a

1.	The resistance of 20 em long wire is 5 ohm. The wir~ is stretched to a uniform wire of 40 em length. The resistance now will be (in ohms)
A.	5
B.	20
C.	200
D.	10
Answer» C. 200