If the current in the toroidal solenoid increases uniformly from zero to 6.0 A in 3.0 μs. Self-inductance of the toroidal solenoid is 40 μH. The magnitude of self-induced emf is

A long solenoid (𝑛=800 turns/m) has a cross-sectional area of 0.51m2 and a current given by 𝐼=5.6+6.3𝑡2A, where 𝑡 is in seconds. A circular coil (𝑁=900 turns) with a cross-sectional area of 0.36m2 is inside and coaxial with the solenoid. What is the magnitude of the emf induced in the coil at 𝑡=1.4s?

The current in a coil decreases from 30 amp to 10 amp in 0.2 sec if the self inductance of coil is 4 Henry. What is the induced emf in volts?

The self inductance L of a solenoid of length l and area of cross-section A, with a fixed number of turns N increases asl and A increasel decreases and A increasesl increases and A decreasesboth l and A decrease

When the current changes from +2 A to - 2 A in 0.05s, and EMF of 8V is inducted in a coil. The coefficient of self-induction of the coil is

An inductor has inductance of 0.280 HH and carries a current that is decreasing at a uniform rate of 15.0 mA/smA/s .Part AFind the self-induced emf in this inductor.Express your answer in millivolts.