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 282 mA 100 mA 141 mA 200 mA TRUE ANSWER : ? 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? 2121 and θ = –19.5° 734 and θ = –38.9° 707 and θ = –19.5° 73.4 and θ = –19.5° TRUE ANSWER : ? 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 130 mW 84.5 mW 845 mW 13 mW TRUE ANSWER : ? YOUR ANSWER : ?
Point +4 on the complex plane is 4 units below the origin on the j axis 4 units left of the origin on the real axis 4 units above the origin on the j axis 4 units right of the origin on the real axis TRUE ANSWER : ? YOUR ANSWER : ?
In the complex plane, the number 14 – j5 is located in the fourth quadrant second quadrant third quadrant first quadrant TRUE ANSWER : ? YOUR ANSWER : ?
The complex number 6 + j6 is equivalent to 645° 8.4890° 8.4845° 3645° TRUE ANSWER : ? YOUR ANSWER : ?
For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is 25 W 275 W 19.52 W 195.2 W TRUE ANSWER : ? YOUR ANSWER : ?
What is the value of the hypotenuse of a right triangle whose sides are 12 and 18? 4.24 3.46 2.16 21.63 TRUE ANSWER : ? YOUR ANSWER : ?
What is the angular difference between +j4 and –j4? 30° 90° 270° 180° TRUE ANSWER : ? YOUR ANSWER : ?
In the complex plane, the number 4 + j3 is located in the first quadrant third quadrant fourth quadrant second quadrant TRUE ANSWER : ? YOUR ANSWER : ?