This questions has Statement $I$ and Statement $II$ Of the four choices given after the Statements, choose the one that best describes into two Statements.
Statement$-I$ : Higher the range, greater is the resistance of ameter.
Statement$-II$ : To increase the range of ammeter, additional shunt needs to be used across it.
Statement$-I$ : Higher the range, greater is the resistance of ameter.
Statement$-II$ : To increase the range of ammeter, additional shunt needs to be used across it.
JEE MAIN 2013, Easy
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Statements $I$ is false and Statement $II$ is true
For ammeter, shunt resistance, $\mathrm{S}=\frac{\mathrm{IgG}}{\mathrm{I}-\mathrm{Ig}}$
Therefore for $I$ to increase, $S$ should decrease, So additional $S$ can be connected across it.
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