Question

Draw one arrangement of a current induced in a coil with a second coil and a battery. Include the way the galvanometer was hooked up. Show the current direction and how the galvanometer was used to indicate the current. Then illustrate how you can predict this using Len's Law and the Right hand rule?

Draw please.

Answer 1

The basic idea behind the determining the direction of induced current in a coil is taking current in the sense which generates magnetic field lines in the direction which opposes the change in flux through the coil. As in case 1, the current carrying loop having battery in it, is moving towards the coil having galvanometer in it, hence, magnetic flux gets increasing in the coil. Thus in order to decrease the flux through it, the coil develops an induced emf which in turn results in an induced current in it, which flows in the sense which decreases the net flux through it.