Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electrical Engineering
»
RC Circuits
A 120 Ω resistor is in parallel with a capacitor with a capacitive reactance of 40 Ω. Both components are across a 12 V ac source. What is the magnitude of the total impedance?
37.9 Ω
3.7 Ω
14,400 Ω
4,800 Ω
Correct Answer:
37.9 Ω
← Previous Question
Next Question→
More Questions from
RC Circuits
The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency
Complex numbers can be added and subtracted but not multiplied or divided.
Positive numbers can be represented by points to the right of the origin on the horizontal axis of a graph.
A complex number represents a phasor quantity.
The impedance of a series RC circuit varies directly with frequency.
In a lag network, the output voltage lags the input voltage in phase.
The resistor voltage is always out of phase with the current.
Apparent power is expressed in watts.
A filter passes all frequencies.
In an RC circuit, the impedance is determined by both the resistance and the capacitive reactance combined.
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments