In shown arrangement of experiment of meter bridge if AC corresponding to null deflection of galvano

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3.Current Electricity

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In the shown arrangement of the experiment of the meter bridge if $AC$ corresponding to null deflection of galvanometer is $x$, what would be its value if the radius of the wire $AB$ is doubled

A

$x$

B

$x/4$

C

$4x$

D

$2x$

(IIT-2003)

Solution

(a) Balancing length is independent of the cross sectional area of the wire.

Standard 12

Physics

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