Inductors An inductor, a 1 k resistor, and a switch are connected in series across a 6 V battery. At the instant the switch is closed, the inductor voltage is 0 V 12 V 4 V 6 V 0 V 12 V 4 V 6 V 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 219 kΩ 660 kΩ 66 kΩ 1.3 MΩ 219 kΩ 660 kΩ 66 kΩ 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 18 mV 180 mV 1.8 mV 1.25 mV 18 mV 180 mV 1.8 mV 1.25 mV 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 87 mA 870 mA 337 mA 87 A 87 mA 870 mA 337 mA 87 A ANSWER DOWNLOAD EXAMIANS APP
Inductors The voltage across a coil when di/dt = 20 mA/s and L = 8 H is 160 mV 1.6 mV 16 mV 2.5 mV 160 mV 1.6 mV 16 mV 2.5 mV 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? 400 mA 91 mA 78 mA 57 mA 400 mA 91 mA 78 mA 57 mA ANSWER DOWNLOAD EXAMIANS APP
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