Below is a diagram showing two solenoids placed along the sa

Below is a diagram showing two solenoids placed along the same axis. The switch in the left solenoid\'s circuit is initially open. Just after the switch on the left coil is closed, does the current flow right to left, loft to right through the resistor of the right coil, or Is the current zero? Justify. Long after the switch on the left coil is closed, does the current flow right to left, left to right through the resistor of the right coil. Or is the current zero? Explain.

Solution

1.

a)

Right to left

The Magnetic field originally is left to right through both the coils and right when switch closes the flux is increasing .So Magnetic field is right to left through the right coil.

b)

The Current is zero since the magnetic filed and flux throught the right coil is not changing