An `AC` source of variable frequency `f` is connected to an `LCR` series circuit. Which one of the graphs in figure represents the variation of current of current `I` in the circuit with frequency `f`?

Options

A.
B.
C.
D.

Answer

C

Explanation

As explainded in solution `(1)` for frequency `0-f_(r),Z` decrease hence `(i=V//Z)` increases and for frequency `f_(r)-oo,Z` increases hence `i` decreases.