Daily review: Inductor Quiz Practice Quiz | Daily…

Q: What is the primary function of an inductor in an electrical circuit?

To store energy in a magnetic field — Inductors store energy in a magnetic field created by the current flow.

Q: The unit of inductance is the:

Henry (H) — Inductance is measured in Henrys (H).

Q: What happens to the current through an inductor when the voltage across it is constant?

The current increases linearly. — Constant voltage results in a linearly increasing current (I = V*t/L).

Q: Which of the following factors affects the inductance of a coil?

All of the above — All listed factors contribute to inductance: turns, core material, and area.

Q: In a series RLC circuit, at what point does an inductor's inductive reactance (XL) equal the capacitive reactance (XC)?

At the resonant frequency — Resonance occurs when XL = XC, leading to minimum impedance.

Q: What is the formula for calculating the inductive reactance (XL) of an inductor?

XL = 2?fL — XL = 2?fL, where f is frequency and L is inductance.

Q: How does an inductor behave immediately after a switch is closed in a DC circuit?

It opposes the change in current. — An inductor opposes the change in current, initially hindering its flow.

Q: What is the energy stored in an inductor given by?

E = 1/2 * L * I^2 — The energy stored in an inductor is 1/2 * L * I^2.

Q: An ideal inductor has which characteristic?

Zero resistance. — An ideal inductor has no resistance and stores all energy efficiently.

Q: Which of the following is a common application of inductors?

All of the above — Inductors are versatile and used in filter, storage and tuning applications.

Question 1 of 10

What is the primary function of an inductor in an electrical circuit?

Inductors store energy in a magnetic field created by the current flow.

Question 2 of 10

The unit of inductance is the:

Inductance is measured in Henrys (H).

Question 3 of 10

What happens to the current through an inductor when the voltage across it is constant?

Constant voltage results in a linearly increasing current (I = V*t/L).

Question 4 of 10

Which of the following factors affects the inductance of a coil?

All listed factors contribute to inductance: turns, core material, and area.

Question 5 of 10

In a series RLC circuit, at what point does an inductor's inductive reactance (XL) equal the capacitive reactance (XC)?

Resonance occurs when XL = XC, leading to minimum impedance.

Question 6 of 10

What is the formula for calculating the inductive reactance (XL) of an inductor?

XL = 2?fL, where f is frequency and L is inductance.

Question 7 of 10

How does an inductor behave immediately after a switch is closed in a DC circuit?

An inductor opposes the change in current, initially hindering its flow.

Question 8 of 10

What is the energy stored in an inductor given by?

The energy stored in an inductor is 1/2 * L * I^2.

Question 9 of 10

An ideal inductor has which characteristic?

An ideal inductor has no resistance and stores all energy efficiently.

Question 10 of 10

Which of the following is a common application of inductors?

Inductors are versatile and used in filter, storage and tuning applications.

Daily review: Inductor Quiz