Embibe Experts Solutions for Chapter: Electromagnetic Induction, Exercise 1: Exercise 1

A long conductor $AB$ lies along the axis of a circular loop of radius $R$. If the current in the conductor $AB$ varies at the rate of $I$ ampere/second, then the induced emf in the loop is

The north pole of a magnet is brought near a metallic ring as shown in fig. The direction of induced current in the ring will be-

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

Figure shows a square loop of side $0.5 \mathrm{m}$ and resistance $10\mathrm{\Omega }$. The magnetic field on left side of line PQ has a magnitude $B=1.0 \mathrm{T}$. The work done in pulling the loop out of the field uniformly in $2.0 \mathrm{s}$ is

As a result of change in the magnetic flux linked to the closed loop shown in the figure, an emf $V$ volt is induced in the loop. The work done (joules) in taking a charge $Q$ coulomb once along the loop is

As a result of change in the magnetic flux linked to the closed loop shown in the figure, an e.m.f. . $\mathrm{V}$volt is induced in the loop. The work done (joules) in taking a charge $Q$ coulomb once along the loop is :-

As shown, a uniform magnetic field $B$ pointing out of the paper plane is confined in the shaded area of radius $r$. At a distance$R$ from the centre of the shaded area there is a point particle of mass $m$ and carrying charge $q$. The magnetic field is then quickly changed to zero. Find the speed of the particle.

An electric generator is based on_____