List of top Physics Questions on Electromagnetic Induction and Inductance asked in UP Board XII

Explain the difference between self-inductance and mutual inductance. Define the coefficient of self-inductance and coefficient of mutual inductance. A plane coil of area 100 cm$^2$ is rotating in a magnetic field of 2 weber/m$^2$ with angular velocity 20 rad/s. What will be the maximum induced electromotive force in the coil?
Self-inductance of a coil is 6 mH and the rate of flow of current in it is $10^3$ A/s. Find the induced emf produced in the coil.
What is the phenomenon of mutual induction? What is meant by 1 henry mutual inductance? If a current of 4 A is reduced to zero in 10 \(\mu\)s in the primary coil of a transformer, then 40 kV of induced e.m.f. is produced in the secondary coil. Find out the mutual inductance between the primary and the secondary coils.
The area of a plane coil 1000 turns is 500 cm\(^2\) and it is held perpendicular to a uniform magnetic field of \(4 \times 10^{-4}\) weber/m\(^2\). It is turned through 180° angle in 0.1 second. Calculate the average induced e.m.f. produced in the coil.
The unit of coefficient of self-inductance is:
A metallic rod of 1.0 m length is rotating about a perpendicular axis passing through its one end with an angular frequency of 400 rad/s. The other end of the rod is in contact with a ring of metal. Magnetic field of 0.5 T is along its axis. Calculate the induced emf between the ring and the axis.
Write Lenz's law.
Two rail tracks are isolated with each other and on the ground as well. They are connected with a milivoltmeter. What will be the reading in milivoltmeter when a train run at the speed of 180 km/hour on it? Given that the vertical component of earth's field is \(0.2 \times 10^{-4}\) weber/m\(^2\) and tracks are 1 m distance apart with each other.
Write the principle and working of alternating current generator.
What is the principle of transformer ? Explain the working of step-up transformer by drawing circuit diagram.
What is meant by self-inductance ? The self-inductance of a coil is 0.4 m Henry. The value of current flowing in it changes by 1 ampere in 0.1 second. Calculate the induced electro motive force.

What are electromagnetic waves? Draw their propagation diagram. Show the electric field amplitude and magnetic field amplitude in the propagation diagram. 
 

Define Mutual Inductance. Show that Henry = Newton Meter / Ampere².