Electromagnetic...

According to Farady 's law

Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of 200 V induced, estimate of the self-inductance of the circuit is

The magnetic field between the Horizontal poles of an electromagnet is uniform at any time, but its magnitude is increasing at the rate of 0.020T/s.The area of a horizontal conducting loop in the magnetic field is 120cm² , and the total circuit resistance, including the meter, is  5 Ω. Induced emf and the induced current in the circuit are

Coils  C₁  and  C₂  are stationary. C₁  connected in series with one very small diwali bulb while  C₂  is connected to a battery .If the connection is suddenly snapped

If AC generator coil has area A, rotates in a magnetic field of B with an angular speed  ω , the voltage generated is

Kamla peddles a stationary bicycle the pedals of the bicycle are attached to a 100 turn coil of area 0.10m² . The coil rotates at half a revolution per second and it is placed in a uniform magnetic field of 0.02 T perpendicular to the axis of rotation of the coil. What is the maximum voltage generated in the coil?

A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0 to 20 A in 0.5 s, change of flux linkage with the other coil is

The magnetic field between the Horizontal poles of an electromagnet in is uniform at any time, but its magnitude is increasing at the rate of 0.020 T/s.The area of a loop made of perfect insulating material is 120cm² .This loop is kept horizontally in the magnetic field. Induced emf and the induced current in the circuit are

If the polarity of induced emf is such that it tends to produce a current which aids the change in magnetic flux that produced it, which conservation law is violated?

A rectangular loop and a circular loop are moving out of a uniform magnetic field region to a field-free region with a constant velocity v as  shown  in  fig. In which loop do  you  except   the induced EMF to be constant during the passage out of the field region if the field is normal to the loops.