Inductors A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is 5.5 mH less than 0.2 mH less than 5.5 mH 55 mH 5.5 mH less than 0.2 mH less than 5.5 mH 55 mH 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 870 mA 87 mA 87 A 337 mA 870 mA 87 mA 87 A 337 mA 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? 57 mA 91 mA 78 mA 400 mA 57 mA 91 mA 78 mA 400 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors The inductance of an iron-core coil decreases if the iron core is removed the number of turns is decreased the length of the coil decreases None of these the iron core is removed the number of turns is decreased the length of the coil decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Inductors When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field does not change doubles is quartered quadruples does not change doubles is quartered quadruples 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? 66 kΩ 219 kΩ 660 kΩ 1.3 MΩ 66 kΩ 219 kΩ 660 kΩ 1.3 MΩ ANSWER DOWNLOAD EXAMIANS APP
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