A tank circuit in an FM receiver contains a fixed inductor of 2.0 µH connected in…
PHYSICS · Multi-part · CBSE · Physics · Alternating Current · Alternating Current
Problem
A tank circuit in an FM receiver contains a fixed inductor of 2.0 µH connected in series with a variable capacitor.
(i) Find the capacitance required for the circuit to resonate precisely at 100 MHz.
(ii) If the peak current at resonance is 50 mA, calculate the peak voltage that appears across the capacitor at this frequency.
(iii) State the minimum rms voltage rating that the capacitor must safely withstand based on your result in (ii).