EXAMIANS
The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency
YOUR ANSWER : ?
YOUR ANSWER : ?
In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is
YOUR ANSWER : ?
For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is
YOUR ANSWER : ?
What is the angular difference between +j4 and –j4?
YOUR ANSWER : ?
In the complex plane, the number 14 – j5 is located in the
YOUR ANSWER : ?
Point +4 on the complex plane is
YOUR ANSWER : ?
A 12 kΩ resistor is in series with a 0.02 μF capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3 angle 0° mA, what is the source voltage expressed in polar form?
YOUR ANSWER : ?
When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
YOUR ANSWER : ?
A 47Ω resistor and a capacitor with a capacitive reactance of 120 are in series across an ac source. What is the circuit impedance, Z?
YOUR ANSWER : ?
A 2 k resistor is in series with a 0.015 F capacitor across a 15 kHz ac source. What is the magnitude of the total impedance and the phase angle?
YOUR ANSWER : ?