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

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

87 mA

87 A

337 mA

870 mA

87 mA

87 A

337 mA

870 mA

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Inductors
A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is

55 mH

less than 5.5 mH

5.5 mH

less than 0.2 mH

55 mH

less than 5.5 mH

5.5 mH

less than 0.2 mH

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Inductors
A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

is increased

does not change

is decreased

momentarily goes to zero

is increased

does not change

is decreased

momentarily goes to zero

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Inductors
When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field

does not change

is quartered

doubles

quadruples

does not change

is quartered

doubles

quadruples

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Inductors
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?

66 kΩ

660 kΩ

219 kΩ

1.3 MΩ

66 kΩ

660 kΩ

219 kΩ

1.3 MΩ

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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

32 μH

248 μH

8 H

64 μH

32 μH

248 μH

8 H

64 μH

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Inductors

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

Inductors A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is

Inductors A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

Inductors When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field

Inductors 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?

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

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

Inductors
A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is

Inductors
A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

Inductors
When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field

Inductors
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?

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