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 ms 48 s 0.48 μs 0.48 s 0.48 ms 48 s 0.48 μs 0.48 s 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 660 kΩ 1.3 MΩ 219 kΩ 66 kΩ 660 kΩ 1.3 MΩ 219 kΩ 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 A 870 mA 337 mA 87 mA 87 A 870 mA 337 mA 87 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors An inductance of 0.43 mH is smaller than 43 μH 0.00043 H 430 μH 0.05 H 43 μH 0.00043 H 430 μH 0.05 H ANSWER DOWNLOAD EXAMIANS APP
Inductors A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current is decreased does not change momentarily goes to zero is increased is decreased does not change momentarily goes to zero is increased ANSWER DOWNLOAD EXAMIANS APP
Inductors The inductance of an iron-core coil decreases if the iron core is removed the length of the coil decreases None of these the number of turns is decreased the iron core is removed the length of the coil decreases None of these the number of turns is decreased ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS