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 78 mA 91 mA 57 mA 400 mA 78 mA 91 mA 57 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors Five inductors are connected in series. The lowest value is 8 μH. If the value of each inductor is twice that of the preceding one, and if the inductors are connected in order of ascending values, the total inductance is 64 μH 32 μH 8 H 248 μH 64 μH 32 μH 8 H 248 μH ANSWER DOWNLOAD EXAMIANS APP
Inductors An inductance of 0.43 mH is smaller than 0.00043 H 430 μH 0.05 H 43 μH 0.00043 H 430 μH 0.05 H 43 μH ANSWER DOWNLOAD EXAMIANS APP
Inductors When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field quadruples doubles does not change is quartered quadruples doubles does not change is quartered 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? 0.48 μs 0.48 ms 0.48 s 48 s 0.48 μs 0.48 ms 0.48 s 48 s 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 increased is decreased momentarily goes to zero does not change is increased is decreased momentarily goes to zero does not change ANSWER DOWNLOAD EXAMIANS APP
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