Question 1
What is the formula for calculating the induced electromotive force (emf) according to Faraday's law?
Question 2
In an RL circuit, what happens to the current as time approaches infinity after the switch is closed?
Question 3
If the magnetic flux through a coil of 15 turns changes from 0.5 Wb to 1.0 Wb in 2 seconds, what is the magnitude of the induced emf?
Question 4
According to Lenz's law, if the magnetic flux through a coil decreases, what is the direction of the induced current?
Question 5
What is the energy stored in an inductor with inductance $L$ carrying current $I$?