A 12 kHz voltage is applied to a 0.33 F capacitor, and 200 mA of rms current is measured. What is the value of the voltage? 8 V 80 V 80 mV 800 mV TRUE ANSWER : ? YOUR ANSWER : ?
What is the capacitance when Q = 60 μC and V = 12 V? 12 μF 5 μF 50 μF 720 μF TRUE ANSWER : ? YOUR ANSWER : ?
A 0.00022 F capacitor equals how many microfarads? 220 μF 22,200 μF 2,200 μF 22 μF TRUE ANSWER : ? YOUR ANSWER : ?
A 0.01 F capacitor equals how many picofarads? 100,000 pF 1,000 pF 10,000 pF 100 pF TRUE ANSWER : ? YOUR ANSWER : ?
Two 0.68 μ F capacitors are connected in series across a 10 kHz sine wave signal source. The total capacitive reactance is 11.7 Ω 23.41 Ω 4.68 Ω 46.8 Ω TRUE ANSWER : ? YOUR ANSWER : ?
A 4.7 M Ω resistor is in series with a 0.015 μ F capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge? 35 ms 3.5 s 352 ms 70.5 ms TRUE ANSWER : ? YOUR ANSWER : ?
A 2 μ F, a 4 μ F, and a 10 μ F capacitor are connected in series. The total capacitance is less than 4 μ F 2 μ F 1.5 μ F 10 μ F TRUE ANSWER : ? YOUR ANSWER : ?
An uncharged capacitor and a 1 k Ω resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor is 0 V 2 V 3 V 6 V TRUE ANSWER : ? YOUR ANSWER : ?
Two series capacitors (one 2 μ F, the other of unknown value) are charged from a 24 V source. The 2 μ F capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is 4 μ F 2 μ F 8 μ F 1 μ F TRUE ANSWER : ? YOUR ANSWER : ?
A 0.47 μF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is 17 Ω 170 Ω 0.000169 Ω 1.7 Ω TRUE ANSWER : ? YOUR ANSWER : ?