When a current of $16 \, A$ is passed through a $NaCl$ cell for $10 \, min$,what mass of $Na$ (in $g$) is deposited?

The actual value of resistance $R$,shown in the figure is $30\,\Omega$. This is measured in an experiment as shown using the standard formula $R_{measured} = \frac{V}{I}$,where $V$ and $I$ are the readings of the voltmeter and ammeter,respectively. If the measured value of $R$ is $5\%$ less than the actual value,then the internal resistance of the voltmeter is ................. $\Omega$.

In the given electric circuit, the potential difference across $PQ$ is approximately ...... volts.

$A$ battery with an internal resistance of $4 \Omega$ is connected to a circuit consisting of three resistors,$R$,$2R$,and $4R$,as shown in the figure. If the power generated in the circuit is maximum,then the magnitude of $R$ must be: (in $\Omega$)

In an experiment, a graph was plotted of the potential difference $V$ between the terminals of a cell against the circuit current $i$ by varying the load rheostat. The internal conductance of the cell is given by:

If the readings of the ammeter and voltmeter are $2 \, A$ and $120 \, V$ respectively,what is the resistance of the voltmeter in $\Omega$?