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Chapter 32: Q. 58 (page 926)
Show that the power factor of a series RLC circuit is
We have prove that,
Power factor,
Required proof is given below.
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What areand if the emf frequency in FIGURE is ?
A low-pass filter with a crossover frequency of uses a resistor. What is the value of the capacitor?
A high-pass filter with a crossover frequency of uses a resistor. What is the value of the capacitor?
The tuning circuit in an FM radio receiver is a series RLC circuit with a inductor.
a. The receiver is tuned to a station at . What is the value of the capacitor in the tuning circuit?
b. FM radio stations are assigned frequencies every , but two nearby stations cannot use adjacent frequencies. What is the maximum resistance the tuning circuit can have if the peak current at a frequency of , the closest frequency that can be used by a nearby station, is to be no more than of the peak current at ? The radio is still tuned to , and you can assume the two stations have equal strength.
An inductor is connected to a oscillator. The peak current is when the rms voltage is width="36">
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