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 78 mA 91 mA 400 mA 57 mA 78 mA 91 mA 400 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors An 18 V power supply is connected across a coil with a winding resistance of 180 . Current flow in the coil is 100 mA 10 mA 1 A 1 mA 100 mA 10 mA 1 A 1 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 6.9 μH 155 μH 14 μH 2.2 μH 6.9 μH 155 μH 14 μH 2.2 μH ANSWER DOWNLOAD EXAMIANS APP
Inductors When the current through an inductor decreases, the amount of energy stored in the electromagnetic field doubles decreases remains the same increases doubles decreases remains the same increases ANSWER DOWNLOAD EXAMIANS APP
Inductors The winding resistance of a coil can be increased by changing the core material using a thinner wire increasing the number of turns increasing the number of turns or using thinner wire changing the core material using a thinner wire increasing the number of turns increasing the number of turns or using thinner wire 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 248 μH 32 μH 64 μH 8 H 248 μH 32 μH 64 μH 8 H ANSWER DOWNLOAD EXAMIANS APP
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