Inductors A switch, a 220 Ω resistor, and a 60 mH inductor are in series across a 20 V battery. What is the current through the inductor two time constants after the switch is closed? 400 mA 91 mA 78 mA 57 mA 400 mA 91 mA 78 mA 57 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors An inductance of 0.43 mH is smaller than 43 μH 0.00043 H 430 μH 0.05 H 43 μH 0.00043 H 430 μH 0.05 H ANSWER DOWNLOAD EXAMIANS APP
Inductors The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is 1.25 mV 18 mV 180 mV 1.8 mV 1.25 mV 18 mV 180 mV 1.8 mV ANSWER DOWNLOAD EXAMIANS APP
Inductors The following coils are in parallel: 75 H, 40 H, 25 H, and 15 H. The total inductance is approximately 14 μH 2.2 μH 155 μH 6.9 μH 14 μH 2.2 μH 155 μH 6.9 μH ANSWER DOWNLOAD EXAMIANS APP
Inductors Two 10 H inductors are in parallel and the parallel combination is in series with a third 10 H inductor. What is the approximate total reactance when a voltage with a frequency of 7 kHz is applied across the circuit terminals? 660 kΩ 1.3 MΩ 66 kΩ 219 kΩ 660 kΩ 1.3 MΩ 66 kΩ 219 kΩ ANSWER DOWNLOAD EXAMIANS APP
Inductors A 320 H coil is in series with a 3.3 k resistor. How long does it take for current to build up to its full value? 0.48 ms 0.48 s 48 s 0.48 μs 0.48 ms 0.48 s 48 s 0.48 μs ANSWER DOWNLOAD EXAMIANS APP
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