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The resistance of a galvanometer is R oh...

The resistance of a galvanometer is R ohms and its maximum reading is I ampere. A shunt is connected across the galvanometer so that it is made an ammeter that can read NI ampere (N>1) The value of the shunt (Sh) in ohms is

A

NR

B

(N-1)R

C

`R/(N-1)`

D

`(N-I)/R`

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