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While tuning a radio station on a radio set why we usually change value of c?

While tuning a radio station on a radio set why we usually change value of c?

Grade:12th pass

1 Answers

Arunangshu Naskar
19 Points
4 years ago
In an LC circuit, f=1/2 pi(1/LC)¯¹.So in order to increase or decrease the frequency we move the moving capacitor plate from the stationary one. (capacitance is inversely varied as distance between the two plates. Frequency inversely varies as square root of capacitance. Thus frequency directly varies as square root of d.)

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