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The specific resistance of manganin is 5...

The specific resistance of manganin is `50 xx 10^(-8)Omega` m.
The specific resistance of the combination of two cubes of length 50 m in series will be:

A

`10^(-6) Omega m`

B

`2.5 xx10^(-5) Omega m`

C

`2 xx10^(-6) Omega` m

D

`50 xx 10^(-8) Omega `m

Text Solution

Verified by Experts

The correct Answer is:
D
Anti -clockwise
Explanation : The motion of magnet is towards the coil PQ. The point will become north which opposes the relative motion between coil and magnet .Therefore , anti - clockwise curren flow at P.
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