Question

The resistivity of a metal is 0.55 um. A solid
cube of this metal of side 0.01 m is stretched into
a uniform wire of length 2m. The resistance of
the wire will be :
(a) 55 ohm
(c) 2.2 ohm
(b) 5.5 ohm
(d) 22 ohm
​

Answer 1

Answer:

→ (d) 22 ohm

Explanation:

R = kL/A

→ (d) 22 ohm