A 47 Ω resistor and a capacitor with a capacitive reactance of 120 Ω – McqOptions

MCQOPTIONS

1.	A 47 Ω resistor and a capacitor with a capacitive reactance of 120 Ω are in series across an ac source. What is the circuit impedance, Z?
A.	29 Ω
B.	2.9 Ω
C.	67 Ω
D.	3 Ω
Answer» B. 2.9 Ω

Discussion

No Comment Found

Related MCQs

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 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 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 = 0.30° mA, what is the source voltage expressed in polar form?
In a series circuit, when the frequency and the resistance are halved, the impedance
A resistor and a capacitor are in series across a 20 V ac source. Circuit impedance is 4.33 k. Current flow in the circuit is
In a parallel circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is
What is the angular difference between +4 and –4?
In the complex plane, the number 4 + 3 is located in the
When the frequency of the source voltage decreases, the impedance of a parallel circuit
A 47 resistor and a capacitor with a capacitive reactance of 120 are in series across an ac source. What is the circuit impedance, ?