A tuning capacitor can be varied from to

PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current

Problem

A tuning capacitor can be varied from

40\,\text{pF}

400\,\text{pF}

. What approximate inductance should the coil have so that the circuit can cover the entire AM broadcast band from

530\,\text{kHz}

1700\,\text{kHz}

? (Assume coverage is achieved when the lowest frequency corresponds to the maximum capacitance.) (a)

0.093\,\text{mH}

(b)

2.3\,\text{mH}

(c)

0.226\,\text{mH}

(d)

0.022\,\text{mH}