Galvanometer - Practice Questions & MCQ

The value of the current i₁ flowing from A to C in the circuit diagram is:

A galvanometer of resistance $G$ is converted into a voltmeter of range $0-1 V$ by connecting a resistance $R_1$ in series with it, The additional resistance that should be connected in series with $R_1$ to increase the range of the voltmeter to $0-2 V$ will be :

For what value of R will the current in galvanometer zero ?

In an experiment according to set up, when E1 = 12 volt and internal resistance zero, E = 2 volt. The galvanometer reads zero, then X would be

The deflection of a moving coil galvanometer falls from 60 div to 12 div when a shunt of $12 \Omega$ is connected.The resistance of the galvanometer is

The galvanometer Q has internal resistance  and full scale deflection occurs at .Find the series resistor  needed to use the arrangement as a voltmeter with different range as shown in the figure.  

A galvanometer whose resistance is $ \mathrm 200 \Omega $ has 50 divisions in it when a current of $8 \times 10^{-4} \mathrm{~A}$ passes through it, its needle (pointer) deflects by one division. To use this galvanometer as a voltmeter of range $5 v$, it should be connected to the resistance of ______(ohm).

A galvanometer (G) of $2 \Omega$ resistance is connected in the given circuit. The ratio of charge stored in $\mathrm{C}_1$ and $\mathrm{C}_2$ is:

In the electric network shown, when no current flows through the $4 \Omega$ resistor in the arm EB, the potential difference (in V ) between the points A and D will be :

A $72 \Omega$ galvanomter is shunted by resistance of $8 \Omega$. The percentage of the total current which passes through the galvanometer is :