Electrical Engineering - RC Circuits
Exercise : RC Circuits - General Questions
- RC Circuits - General Questions
- RC Circuits - True or False
21.
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?
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 = 0.30° mA, what is the source voltage expressed in polar form?22.
The complex number 40 55° is equivalent to
55° is equivalent to23.
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?
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?37.9
3.7
14,400
4,800
24.
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
resistor and a capacitor with 150 of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, isZ = 47 + j150
+ j150 Z = 47 – j150
– j150 Z = 197
Z = 103
25.
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
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 isQuick links
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