EXAMIANS
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is
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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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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
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The following coils are in parallel: 75 H, 40 H, 25 H, and 15 H. The total inductance is approximately
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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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The winding resistance of a coil can be increased by
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Three 15 mH inductors are in series. The total inductance is
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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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A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is
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A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current
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