A tuning circuit uses a variable capacitor adjustable from to

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

Problem

A tuning circuit uses a variable capacitor adjustable from

20\,\text{pF}

400\,\text{pF}

. To cover the entire AM broadcast band (

530\,\text{kHz}

1600\,\text{kHz}

), the inductance should be chosen closest to (a)

0.46\,\text{mH}

(b)

0.023\,\text{mH}

(c)

0.23\,\text{mH}

(d)

2.3\,\text{mH}