How inductors work

How inductors work

Assessment

Interactive Video

Architecture, Engineering, Other, Physics, Science

University

Hard

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The video uses a water circuit analogy to explain electrical circuits, focusing on components like resistors and inductors. It describes how water flow through pipes is similar to electron flow in wires, with a pump representing a battery. The analogy extends to show how a water wheel acts like an inductor, initially resisting flow but eventually allowing it. The video also covers how inductors store energy in magnetic fields and respond to changes in current, creating back EMF. The explanation is detailed with animations to aid understanding.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how the water pump in the analogy relates to a battery in an electrical circuit.

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What role does the reducer play in the water circuit analogy, and how does it compare to resistance in an electrical circuit?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the function of the water wheel in the analogy and its equivalent in an electrical circuit.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the behavior of the inductor change when the power supply is turned on and off?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What happens to the magnetic field when the current through the inductor is cut off?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the concept of back EMF and its significance in the operation of an inductor.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the inductor attempt to stabilize current flow when there is a reduction in current?

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