Inductance is indirectly proportional to the square of the number of turns, the

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Home ‣ Electrical Engineering ‣ Inductors See What Others Are Saying!

Question
Inductance is indirectly proportional to the square of the number of turns, the permeability, and the cross-sectional area of the core.
Options
A. True
B. False

Correct Answer

False

Explanation

Some factors that affect the inductance of a coil include:

1. The inductance is proportional to the square of the number of turns;
2. The inductance increases directly as the permeability of the core material increases;
3. The inductance increases directly as the cross-sectional area increases; and
4. The inductance decreases as its length increases.

More questions

1. One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.
Options
A. True
B. False

Discuss

Correct Answer: False

2. A 75 Ω load uses 2 W of power. The output voltage of the power supply is approximately
Options
A. 120 V
B. 1.2 V
C. 12 V
D. 6 V

Discuss

Correct Answer: 12 V

3. A 2 kΩ resistor and a 0.002 µF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is
Options
A. 84.5 mW
B. 845 mW
C. 13 mW
D. 130 mW

Discuss

Correct Answer: 84.5 mW