Inductors When the current through an inductor decreases, the amount of energy stored in the electromagnetic field doubles remains the same decreases increases doubles remains the same decreases increases ANSWER DOWNLOAD EXAMIANS APP
Inductors Two inductors, L1 and L2, are in parallel. L1 has a value of 25 H and L2 a value of 50 H. The parallel combination is in series with L3, a 20 H coil. The entire combination is across an ac source of 60 Vrms at 300 kHz. The total rms current is 337 mA 87 mA 87 A 870 mA 337 mA 87 mA 87 A 870 mA 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? 1.3 MΩ 66 kΩ 660 kΩ 219 kΩ 1.3 MΩ 66 kΩ 660 kΩ 219 kΩ ANSWER DOWNLOAD EXAMIANS APP
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? 78 mA 91 mA 57 mA 400 mA 78 mA 91 mA 57 mA 400 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors Three 15 mH inductors are in series. The total inductance is 15 mH 5 mH 45 mH 30 mH 15 mH 5 mH 45 mH 30 mH ANSWER DOWNLOAD EXAMIANS APP
Inductors An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is good partly shorted open shorted good partly shorted open shorted ANSWER DOWNLOAD EXAMIANS APP
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