The resistance of an ammeter is R0. It c...

The resistance of an ammeter is `R_0`. It can read up to 1 ampere. To convert this into an ammeter to read `(0-nl)` ampere, the shunt resistance to be used is

`R_0(n-1)`

`R_0/(n-1)`

`nR_0`

`R_0/n`.

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