A 47 ≈í¬© resistor and a capacitor with a capacitive reactance of – McqOptions

MCQOPTIONS

1.	A 47 ≈í¬© resistor and a capacitor with a capacitive reactance of 120 ≈í¬© are in series across an ac source. What is the circuit impedance, Z?%!
A.	129 ≈í¬©
B.	12.9 ≈í¬©
C.	167 ≈í¬©
D.	73 ≈í¬©
Answer» B. 12.9 ≈í¬©

Discussion

No Comment Found

Related MCQs

In a lag network, the output voltage lags the input voltage in phase.~!
In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is~!
For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is%!
Complex numbers can be added and subtracted but not multiplied or divided.%!
When the frequency of the voltage applied to a series RC circuit is increased, the phase angle%!
A 120 ≈í¬© resistor is in parallel with a capacitor with a capacitive reactance of 40 ≈í¬©. Both components are across a 12 V ac source. What is the magnitude of the total impedance?%!
In an RC circuit, the impedance is determined by both the resistance and the capacitive reactance combined.%!
An imaginary number is one that exists only in the mind of the mathematician.%!
The polar form of a complex number consists of a real part and a j part.%!
The resistor voltage is always out of phase with the current.%!