Inductors A 320 H coil is in series with a 3.3 k resistor. How long does it take for current to build up to its full value? 0.48 μs 48 s 0.48 ms 0.48 s 0.48 μs 48 s 0.48 ms 0.48 s 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 870 mA 87 A 87 mA 337 mA 870 mA 87 A 87 mA ANSWER DOWNLOAD EXAMIANS APP
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 4 V 12 V 6 V 0 V 4 V 12 V 6 V ANSWER DOWNLOAD EXAMIANS APP
Inductors When the current through an inductor decreases, the amount of energy stored in the electromagnetic field remains the same decreases doubles increases remains the same decreases doubles increases 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 quadruples is quartered doubles does not change quadruples is quartered doubles ANSWER DOWNLOAD EXAMIANS APP
Inductors The winding resistance of a coil can be increased by increasing the number of turns using a thinner wire increasing the number of turns or using thinner wire changing the core material increasing the number of turns using a thinner wire increasing the number of turns or using thinner wire changing the core material ANSWER DOWNLOAD EXAMIANS APP
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