Assertion: `AC` generators are based upon `EMI` principle.
Reason: Resistance offered by capacito for alternating current is zero.

Assertion (A) : Principle of operation of AC generator is electromagnetic induction. Reason (R) : Resistance offered by inductor for AC is zero.

Show that resistance offered by an ideal inductor to the flow of direct current is zero.

Assertion : An ac generator is based on the self inductance of the coil. Reason : Self inductance involves two coils.

Assertion : An ac generator is based on the self inductance of the coil. Reason : Self inductance involves two coils.

Assertion : The switch S shown in the figure is closed at t = 0 . Initial current flowing through battery is (E)/(R + r) Reason : Initially capacitor was uncharged, so resistance offered by capacitor at t = 0 is zero

Assertion : The switch S shown in the figure is closed at t = 0 . Initial current flowing through battery is (E)/(R + r) Reason : Initially capacitor was uncharged, so resistance offered by capacitor at t = 0 is zero

Assertion: At 0K germanium is a superconductor. Reason: At 0K germanium offers zero resistance.