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For a post office box, the graph of galv...

For a post office box, the graph of galvanometer deflection verus (R ) (resistance pulled out of resistance box) for the ratio `100.1 ` is given as shown. Find the value of unknown resistance.
.

A

`324 Omega`

B

`3 .24 Omega`

C

`32.4 Omega`

D

None of the above.

Text Solution

Verified by Experts

The correct Answer is:
B
Deflection is zero for `R = 324 Omega`
Now, `X =(Q/P)R = (1/(100))(324)`
=`3.24 Omega`.
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