A moving coil galvanometer can be converted into a Voltmeter by connecting:

A circular loop of insulated copper wire carrying a current of $0.50 \text{A}$ is placed with its plane perpendicular to a uniform magnetic field $\text{B}= 0.20 \text{T}.$ The radius of the loop is 4.9 cm. Calculate the torque exerted by the magnetic field on the coil.

A student determining the resistance $\text{R}$ of a conductor commits the mistake of connecting the voltmeter in series and the ammeter in parallel of $\text{R}$. What readings of ammeter and voltmeter will be obtained? The resistance of the voltmeter is $1500\mathrm{\Omega }$ and the resistance of the ammeter is negligible.