List of top Physics Questions on The Moving Coil Galvanometer asked in MHT CET

If an ammeter is to be used in place of a galvanometer, then we must connect

When a resistance of 100 $\Omega$ is connected in series with a galvanometer of resistance 'G', its range is 'V'. To double its range, a resistance of 1000 $\Omega$ is connected in series. The value of 'G' is ______.

A moving coil galvanometer is converted into an ammeter, reading upto 0.04 A by connecting a shunt of resistance \(3r\) across it and then into an ammeter reading upto 0.8 A, when a shunt of resistance \(r\) is connected across it. What is the maximum current which can be sent through this galvanometer if no shunt is used?

A galvanometer has resistance '$G$' $\Omega$ and '$I_g$' is current flowing through it which produces full scale deflection. '$S_1$' is the value of shunt which converts it into an ammeter of range 0 to '$3I$' and '$S_2$' is the shunt value which converts it into an ammeter of range 0 to '$4I$', the ratio $S_2 : S_1$ is

A galvanometer of resistance 50 $\Omega$ is converted to an ammeter. After shunting, the effective resistance of ammeter is 2.5 $\Omega$. The value of shunt is