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 91 mA 78 mA 400 mA 57 mA 91 mA 78 mA 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 less than 0.2 mH 55 mH 5.5 mH less than 5.5 mH less than 0.2 mH 55 mH 5.5 mH less than 5.5 mH ANSWER DOWNLOAD EXAMIANS APP
Inductors Three 15 mH inductors are in series. The total inductance is 30 mH 15 mH 5 mH 45 mH 30 mH 15 mH 5 mH 45 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 337 mA 870 mA 87 A 87 mA 337 mA 870 mA 87 A 87 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors An inductance of 0.43 mH is smaller than 430 μH 43 μH 0.00043 H 0.05 H 430 μH 43 μH 0.00043 H 0.05 H ANSWER DOWNLOAD EXAMIANS APP
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? 48 s 0.48 s 0.48 ms 0.48 μs 48 s 0.48 s 0.48 ms 0.48 μs ANSWER DOWNLOAD EXAMIANS APP
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