Faraday's Law of Electromagnetic Induction

According to Faraday’s law of electromagnetic induction:

A rectangular loop and a circular loop are moving out of a uniform magnetic field to a field – free region with a constant velocity ‘v’ as shown in the figure. Explain which loop do you expect the induced emf to be constant during the passage out of the field region. The magnetic field is normal to the loops.

(i) In an a.c. generator, coil of $N$ turns and area $A$ is rotated at $v$ revolution per second in a uniform magnetic field $B$. Write the expression for the emf produced.

(ii) A $100$ turn coil of area  $0.1{\text{ m}}^{\text{2}}$  rotates at half a revolution per second. It is placed in a magnetic field $0.01 \mathrm{T}$ perpendicular to the axis of rotation of the coil. Calculate the maximum voltage generated in the coil.

Which one is the correct relation between magnetic flux $\left(\varphi \right)$. magnetic field $\left(B\right)$, area surface $A$ and angle between the magnetic field lines and perpendicular distance normal to the surface area($\theta$)

If a coil of metal wire is kept stationary in a uniform magnetic field, then _____.

Which of the following operations between the magnetic field and the area gives the magnetic flux?

The magnetic flux linked (in Weber) with a coil of resistance $10 \mathrm{\Omega }$ is varying with respect to time $t$ as $\Phi =4t^2+2t+1$. Then the current in the coil at time $t=1$ second is

The law of electromagnetic induction has been used in the construction of

Whenever a magnet is moved either towards or away from a conducting coil. An emf is induced then the magnitude of induced emf is independent of

In an AC dynamo, the peak value of emf is $60 \mathrm{V}$. The induced emf, in a position when perpendicular to the armature coil making an angle of ${30}^{\circ }$ with the magnetic field, will be

The total charge, induced in a conducting loop, when it is moved in a magnetic field depends on

In $0.1 \mathrm{s}$, the current in a coil increases from $1 \mathrm{A}$ to $1.5 \mathrm{A}$. If inductance of coil is $60 \mathrm{mH}$, then induced current in external resistance of $3 \mathrm{\Omega }$ will be

The magnetic flux passing perpendicular through a coil changes with times $\varphi =10t^2+5t+1$ here $t$ is in second and $\varphi$ is in $\mathrm{\mu Wb}$ then induced emf at $t=5 \mathrm{s}$ is -

When a bar magnet enters inside a coil, the induced emf in coil does not depends on 

In electromagnetic induction the magnitude of induced emf depends only on-

The working of a generator is based upon

An infinitely long cylinder is kept parallel to a uniform magnetic field $B$ direction along positive $z-$axis. The direction of induced current on the surface of cylinder a seen from the $z-$axis will be

The number of turns in the coil of an A.C. generator are $100$ and its cross-sectional area is $2.5 {\mathrm{m}}^2$. The coil is revolving in a uniform magnetic field of strength $0.3 \mathrm{T}$ with the uniform angular velocity of $60$ $\mathrm{rad}/\mathrm{s}.$ The value of maximum value of emf produced is _______ $\mathrm{kV}$.

A cylindrical conducting rod is kept with its axis along positive $z$ -axis, where a uniform magnetic field exists parallel to $z$ -axis. The current induced in the cylinder is

Magnetic Flux linked with a coil is $\varphi =5t^2+2t+3$, where t is in second and $\varphi$ is in Weber. At time $t=1\sec$. The value of induced emf is ...... volt.