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RC Circuits
In a purely capacitive ac circuit, the amount of energy converted to heat is proportional to the circuit's current.
True
Correct Answer:
False
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RC Circuits
The current lags the source voltage in a series RC circuit.
If the resistor drops 6 V and the capacitor drops 8 V in a series RC circuit, the source voltage equals 10 V.
The magnitude of the impedance in the given circuit is approximately 500 Ω.
Resistance is the same as impedance in an RC circuit.
In parallel RC circuits, the larger the value of C, the larger the phase angle.
If the bandwidth of an RC low-pass filter is 20 kHz, the cutoff frequency is also 20 kHz.
A 10 kΩ capacitive reactance equals a 100 µS capacitive susceptance.
The output voltage from an RC high-pass filter increases as the frequency decreases.
When a series RC circuit is used as a low-pass filter, the output is taken from across the capacitor.
If a 100 Ω resistance is connected to a 100 Ω capacitive reactance in a series RC circuit, the impedance equals 200 Ω.
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