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Inductors
A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is
9.9 mH or greater than 5 mH
9.9 mH
less than 0.6 mH
greater than 5 mH
9.9 mH or greater than 5 mH
9.9 mH
less than 0.6 mH
greater than 5 mH
Answer
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Related Question
Inductors
Three 15 mH inductors are in series. The total inductance is
5 mH
45 mH
15 mH
30 mH
5 mH
45 mH
15 mH
30 mH
Answer
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Inductors
The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is
180 mV
18 mV
1.8 mV
1.25 mV
180 mV
18 mV
1.8 mV
1.25 mV
Answer
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Inductors
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
870 mA
87 A
337 mA
87 mA
870 mA
87 A
337 mA
87 mA
Answer
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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
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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
64 μH
8 H
248 μH
32 μH
64 μH
8 H
248 μH
32 μH
Answer
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