Faraday’s Law: Induced EMF Quiz

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Electromagnetic induction basics

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NOR FARIDAH HANIM MAT JUNIT

Malaysia

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Froggy Jumps Faraday’s Law: Induced EMF QuizOnline version Electromagnetic induction basics by NOR FARIDAH HANIM MAT JUNIT 1 What does Faraday’s law relate in a closed loop? a Induced EMF is proportional to the changing magnetic flux through the loop b EMF depends only on coil material c Induced EMF is constant for a changing current 2 Which quantity changes to induce an EMF in a loop? a Magnetic flux through the loop b The loop’s temperature c Electrical resistance of the wire 3 If the magnetic flux through a loop changes, what is induced? a A static magnetic field b An electromotive force (EMF) and current c A magnetic monopole 4 Which factor does Faraday’s law NOT include? a Rate of change of flux b Absolute magnetic field strength at one instant c Number of turns in the loop 5 Lenz’s law helps determine the direction of: a The loop’s resistance b The induced current c The applied external field 6 If the magnetic flux decreases, the induced current will: a Create a magnetic field opposing the decrease b Enhance the decrease c Be zero until flux reversal 7 The unit of EMF is: a Volt (V) b Ampere (A) c Tesla (T) 8 Which of the following changes would increase induced EMF? a Increasing the rate of change of flux, or using more turns b Reducing loop area c Decreasing resistance of the wire 9 Maxwell’s equation that generalizes Faraday’s law involves: a Ampere’s law with displacement current b Gauss’s law for E c Curl of E equals -dB/dt 10 Mutual induction involves: a Induced EMF in one circuit due to changing flux from another b Induced EMF only in the same circuit c No magnetic field coupling between circuits

Froggy Jumps

Faraday’s Law: Induced EMF QuizOnline version

Electromagnetic induction basics

by NOR FARIDAH HANIM MAT JUNIT

What does Faraday’s law relate in a closed loop?

Induced EMF is proportional to the changing magnetic flux through the loop

EMF depends only on coil material

Induced EMF is constant for a changing current

Which quantity changes to induce an EMF in a loop?

Magnetic flux through the loop

The loop’s temperature

Electrical resistance of the wire

If the magnetic flux through a loop changes, what is induced?

A static magnetic field

An electromotive force (EMF) and current

A magnetic monopole

Which factor does Faraday’s law NOT include?

Rate of change of flux

Absolute magnetic field strength at one instant

Number of turns in the loop

Lenz’s law helps determine the direction of:

The loop’s resistance

The induced current

The applied external field

If the magnetic flux decreases, the induced current will:

Create a magnetic field opposing the decrease

Enhance the decrease

Be zero until flux reversal

The unit of EMF is:

Volt (V)

Ampere (A)

Tesla (T)

Which of the following changes would increase induced EMF?

Increasing the rate of change of flux, or using more turns

Reducing loop area

Decreasing resistance of the wire

Maxwell’s equation that generalizes Faraday’s law involves:

Ampere’s law with displacement current

Gauss’s law for E

Curl of E equals -dB/dt

Mutual induction involves:

Induced EMF in one circuit due to changing flux from another

Induced EMF only in the same circuit

No magnetic field coupling between circuits

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Faraday’s Law: Induced EMF Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Faraday’s Law: Induced EMF QuizOnline version

by NOR FARIDAH HANIM MAT JUNIT

What does Faraday’s law relate in a closed loop?

Which quantity changes to induce an EMF in a loop?

If the magnetic flux through a loop changes, what is induced?

Which factor does Faraday’s law NOT include?

Lenz’s law helps determine the direction of:

If the magnetic flux decreases, the induced current will:

The unit of EMF is:

Which of the following changes would increase induced EMF?

Maxwell’s equation that generalizes Faraday’s law involves:

Mutual induction involves:

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