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he inductance of a tuning circuit of an AM radio is 4 mH. Find the capacitance of the circuit required for reception at 1200 kHz.
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34 votes
34 votes
he inductance of a tuning circuit of an AM radio is 4 mH. Find the capacitance of the circuit required for reception at 1200 kHz.

User Nissar
by
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1 Answer

4 votes
4 votes

Answer:

4.4pF

Step-by-step explanation:

the capacitance of the circuit required for reception is given:

wL =
(1)/(wC)

w = 2π
f

Using both equation

Capacitance is given

C = 1 - 4π2 f2 L

1- 4×9.8969×144×10 10 ×0.004

​=4.4pF

​

​

User Papski
by
2.6k points
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