Inductors An inductor, a 1 k resistor, and a switch are connected in series across a 6 V battery. At the instant the switch is closed, the inductor voltage is 0 V 12 V 4 V 6 V 0 V 12 V 4 V 6 V ANSWER DOWNLOAD EXAMIANS APP
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? 78 mA 57 mA 91 mA 400 mA 78 mA 57 mA 91 mA 400 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors An inductor and a resistor are in series with a sine wave voltage source. The frequency is set so that the inductive reactance is equal to the resistance. If the frequency is increased, then VR ≥ VL VL > VR VL < VR VL = VR VR ≥ VL VL > VR VL < VR VL = VR 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 14 μH 155 μH 6.9 μH 2.2 μH 14 μH 155 μH 6.9 μH 2.2 μH 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 s 0.48 μs 48 s 0.48 ms 0.48 s 0.48 μs 48 s 0.48 ms ANSWER DOWNLOAD EXAMIANS APP
Inductors The inductance of an iron-core coil decreases if None of these the number of turns is decreased the length of the coil decreases the iron core is removed None of these the number of turns is decreased the length of the coil decreases the iron core is removed ANSWER DOWNLOAD EXAMIANS APP
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