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 following coils are in parallel: 75 H, 40 H, 25 H, and 15 H. The total inductance is approximately 2.2 μH 14 μH 155 μH 6.9 μH 2.2 μH 14 μH 155 μH 6.9 μH ANSWER DOWNLOAD EXAMIANS APP
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 5.5 mH 55 mH less than 0.2 mH 5.5 mH less than 5.5 mH 55 mH less than 0.2 mH 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 219 kΩ 1.3 MΩ 66 kΩ 660 kΩ 219 kΩ 1.3 MΩ ANSWER DOWNLOAD EXAMIANS APP
Inductors An inductance of 0.43 mH is smaller than 0.05 H 43 μH 0.00043 H 430 μH 0.05 H 43 μH 0.00043 H 430 μH ANSWER DOWNLOAD EXAMIANS APP
Inductors The winding resistance of a coil can be increased by 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 increasing the number of turns using a thinner wire increasing the number of turns or using thinner wire ANSWER DOWNLOAD EXAMIANS APP
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