An emf Vosinwt is applied to a circuit which consists of a self inductance L of negligible resistance in series with a variable capacitor C. The capacitor is shunted by a variable resistance R. Find the value of C for which the amplitude of the current independent of R.
The Attempt at a Solution
We can use Phasor Algebra to make the problem easy. But I don't have any idea how to start.
Shall I take the equation V = jVL + VR ? , which comes out by taking VR along x-axis and VL along Y axis. If we use this equation then there is no capacitance anywhere.
Help me out!