EXAMIANS
The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is
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An 18 V power supply is connected across a coil with a winding resistance of 180 . Current flow in the coil is
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An inductance of 0.43 mH is smaller than
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Three 15 mH inductors are in series. The total inductance is
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When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field
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An inductance of 0.08 μH is larger than
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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?
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When the current through an inductor decreases, the amount of energy stored in the electromagnetic field
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The inductance of an iron-core coil decreases if
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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?
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