Which of the following combinations of circuit components can be used to make a tuner for a radio,to select the desired frequency?
A)fixed inductor,variable resistor
B)fixed resistor,variable inductor
C)fixed inductor,variable capacitor
D)fixed capacitor,variable resistor

Question

Quizplus · Accepted Answer

A tuner for a radio needs to be able to select and tune to different frequencies. The best way to achieve this is by using a combination of fixed inductors and variable capacitors. This is because when an inductor is combined with a capacitor, it creates a resonant circuit that can be tuned to a specific frequency. By changing the value of the variable capacitor, the resonant frequency of the circuit can be adjusted to select different radio frequencies. Therefore, Choice C (fixed inductor, variable capacitor) is the best combination for making a tuner for a radio.

Which of the Following Combinations of Circuit Components Can Be