A conducting rod is moved with a constant velocity $\overrightarrow{v}$ in a magnetic field. A potential difference appears across the two ends

A rod $\mathrm{AB}$ moves with a uniform velocity $V$ in a uniform magnetic field as shown in figure.

Consider the situation shown in the figure. The wire $AB$ is slide on the fixed rails with a constant velocity. If the wire $AB$ is replaced by a semicircular wire; the magnitude of the induced current will

One conducting $u$ tube can slide inside another as shown in the figure, maintaining electrical contacts between the tubes. The magnetic field $B$ is perpendicular to the plane of the figure. If each tube moves towards the other at a constant speed $v$, then the emf induced in the circuit in terms of $B, l$ and $v$, where $l$ is the width of each tube, will be:

A square coil $ACDE$ with its plane vertical is released from rest in a horizontal uniform magnetic field $\overrightarrow{B}$ of length $2 L.$The acceleration of the coil is

A metallic square loop $ABCD$ is moving in its own plane with velocity $v$ in a uniform magnetic field perpendicular to its plane as shown in the figure.

An electric field is induced