EXAMIANS
A 120Ω 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?
YOUR ANSWER : ?
YOUR ANSWER : ?
The complex number 6 + j6 is equivalent to
YOUR ANSWER : ?
A 2 kΩ resistor and a 0.002 μF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is
YOUR ANSWER : ?
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
YOUR ANSWER : ?
Point +4 on the complex plane is
YOUR ANSWER : ?
When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
YOUR ANSWER : ?
In a series RC circuit, when the frequency and the resistance are halved, the impedance
YOUR ANSWER : ?
When the frequency of the voltage applied to a series RC circuit is increased, the phase angle
YOUR ANSWER : ?
A 47Ω resistor and a capacitor with 150Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, 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 : ?