EEE :: Inductors
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A 240
H inductor is equivalent to a -
A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance 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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The voltage across a coil when di/dt = 20 mA/
s and L = 8 H is -
A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current
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Two 10 H inductors are in parallel and the parallel combination is in series with a third 10 H inductor. What is the approximate total reactance when a voltage with a frequency of 7 kHz is applied across the circuit terminals?
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An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is
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Two inductors, L1 and L2, are in parallel. L1 has a value of 25
H and L2 a value of 50 H. The parallel combination is in series with L3, a 20 H coil. The entire combination is across an ac source of 60 Vrms at 300 kHz. The total rms current is -
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
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