A variable capacitor with a range from 10 to 365 pF is used with a coil to

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A variable capacitor with a range from 10 to 365 pF is used with a coil to form a variable frequency LC circuit to tune the input to a radio.

(a) What is the ratio of maximum frequency to minimum frequency that can be obtained with such a capacitor? If this circuit is to obtain frequencies from 0.54MHz to 1.60MHz, the ratio computed in (a) is too large. By adding a capacitor in parallel to the variable capacitor, this range can be adjusted. To obtain the desired frequency range,

(b) What capacitance should be added and

(c) What inductance should the coil have?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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