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A galvanometer having a resistance of 50...

A galvanometer having a resistance of `50 Omega`, gives a full scale deflection for a current of 0.05 A. The length (in metres) of a resistance wire of area of cross section `3 xx 10^(-2) cm?` that can be used to convert the galvanometer into an ammeter which can read a maximum of 5 A current is `("Specific resistance of the wirep "= 5 xx 10^(-7)Omega m) `

A

9

B

6

C

3

D

1.5

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The correct Answer is:
C
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