muhdauwalaisha muhdauwalaisha

26-03-2021
Physics

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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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catherizamorarivera catherizamorarivera

26-03-2021

Answer:

4.4pF

Explanation:

the capacitance of the circuit required for reception is given:

wL = [tex]\frac{1}{wC}[/tex]

w = 2π [tex]f[/tex]

Using both equation

Capacitance is given

C = 1 - 4π2 f2 L

1- 4×9.8969×144×10 10 ×0.004

=4.4pF

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