Inductors When the current through an inductor decreases, the amount of energy stored in the electromagnetic field doubles increases remains the same decreases doubles increases remains the same decreases ANSWER DOWNLOAD EXAMIANS APP
Inductors The inductance of an iron-core coil decreases if 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 the number of turns is decreased the length of the coil decreases 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? 91 mA 400 mA 78 mA 57 mA 91 mA 400 mA 78 mA 57 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors An inductance of 0.43 mH is smaller than 43 μH 0.00043 H 0.05 H 430 μH 43 μH 0.00043 H 0.05 H 430 μH ANSWER DOWNLOAD EXAMIANS APP
Inductors The voltage across a coil when di/dt = 20 mA/s and L = 8 H is 160 mV 16 mV 1.6 mV 2.5 mV 160 mV 16 mV 1.6 mV 2.5 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 337 mA 87 A 870 mA 87 mA 337 mA 87 A 870 mA 87 mA ANSWER DOWNLOAD EXAMIANS APP
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