EEE :: RC Circuits
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A 12 k
resistor is in series with a 0.02 
F capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3
0° mA, what is the source voltage expressed in polar form? -
The complex number 40
55° is equivalent to -
A 120
resistor is in parallel with a capacitor with a capacitive reactance of 40 . Both components are across a 12 V ac source. What is the magnitude of the total impedance? -
A 47
resistor and a capacitor with 150 of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is -
A 2 k
resistor and a 0.002 F capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is -
A capacitor with 150
of capacitive reactance is across an ac source. The impedance, expressed in polar form, is -
When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
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