In the given circuit, an ideal voltmeter connected across the $10 \Omega$ resistance reads 2 V. The internal resistance r, of each cell is:

A moving coil galvanometer allows a full scale current of $10^{-4} \mathrm{~A}$. A series resistance of $2 \mathrm{M} \Omega$ is required to convert the above...

A galvanometer of resistance G is converted into a voltmeter of range 0 – 1 V by connecting a resistance R1 in series with it....

A moving coil galvanometer has resistance $50 \Omega$ and it indicates full deflection at 4 mA current. A voltmeter is made using this galvanometer and...

In the given circuit diagram, the currents, $\mathrm{I}_1=-0.3 \mathrm{~A}, \mathrm{I}_4=0.8 \mathrm{~A}$ and $\mathrm{I}_5=0.4 \mathrm{~A}$, are flowing as shown. The currents $\mathrm{I}_2, \mathrm{I}_3$ and $\mathrm{I}_6$, respectively,...

A moving coil galvanometer, having a resistance G , produces full scale deflection when a current Ig flows through it. This galvanometer can be converted...

In an experiment, the resistance of a material is plotted as a function of temperature (in some range). As shown in the figure, it is...

In the figure shown, the current in the 10 V battery is close to

A circuit to verify Ohm’s law uses ammeter and voltmeter in series or parallel connected correctly to the resistor. In the circuit