Inductors When the current through an inductor decreases, the amount of energy stored in the electromagnetic field remains the same doubles increases decreases remains the same doubles increases decreases ANSWER DOWNLOAD EXAMIANS APP
Inductors The inductance of an iron-core coil decreases if 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 the iron core is removed 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 57 mA 78 mA 91 mA 400 mA 57 mA 78 mA 91 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors Three 15 mH inductors are in series. The total inductance is 30 mH 15 mH 45 mH 5 mH 30 mH 15 mH 45 mH 5 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 87 mA 337 mA 87 A 870 mA 87 mA 337 mA 87 A 870 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is partly shorted open shorted good partly shorted open shorted good ANSWER DOWNLOAD EXAMIANS APP
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