The north pole of a magnet is falling towards a metallic ring as shown in the figure. If looked at from above the ring,the direction of the induced current will be:

$A$ square wire loop of $10.0 \, cm$ side lies at right angles to a uniform magnetic field of $20 \, T$. $A$ $10 \, V$ light bulb is in series with the loop as shown in the figure. The magnetic field is decreasing steadily to zero over a time interval $\Delta t$. The bulb will shine with full brightness if $\Delta t$ is equal to.......$ms$.

To induce an $e.m.f.$ in a coil, the linking magnetic flux

Lenz's law applies to

Derive the formula for induced charge and prove that it is independent of the rate of change of magnetic flux.

Lenz's law is representing which fundamental conservation law?