# Physics Quiz: Trivia Questions On Magnetic Field

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Questions: 7 | Attempts: 2,616

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• 1.

### Magnetic fields are made by...?

• A.

Electric Currents

• B.

Gravity

• C.

Friction

• D.

Heat

A. Electric Currents
Explanation
Magnetic fields are made by electric currents. When electric charges move, they create a magnetic field around them. This phenomenon is known as electromagnetism. The magnetic field produced by electric currents can be observed in various everyday objects, such as magnets and electromagnets. The strength and direction of the magnetic field depend on the magnitude and direction of the electric current.

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• 2.

### Electric currents are measured in...?

• A.

Nanoteslas

• B.

Amperes

• C.

Microteslas

• D.

Newtons

B. Amperes
Explanation
Electric currents are measured in amperes. Amperes is the standard unit for measuring the rate of flow of electric charge in a circuit. It represents the amount of charge passing through a point in a circuit per unit time. Other options like nanoteslas, microteslas, and newtons are not units for measuring electric currents. Nanoteslas and microteslas are units for measuring magnetic fields, while newtons is a unit for measuring force.

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• 3.

### Magnetic fields move in a ________ path.

Circular
Explanation
Magnetic fields move in a circular path because they are created by the flow of electric current. As the current passes through a wire or a coil, it generates a magnetic field around it. This magnetic field forms closed loops, creating a circular path. The circular path of magnetic fields is a fundamental property of electromagnetism and is described by Ampere's law. This circular movement of magnetic fields is crucial for many applications, such as generating electricity in generators and motors, as well as in the operation of transformers and magnetic storage devices.

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• 4.

### Lines signify the strength of magnetic fields. If the lines are denser the magnetic field is...?

• A.

Weaker

• B.

Slower

• C.

Normal

• D.

Stronger

D. Stronger
Explanation
The explanation for the correct answer, "Stronger," is that the denser the lines of a magnetic field, the stronger the magnetic field is. This is because the density of the lines represents the concentration or intensity of the magnetic field. Therefore, when the lines are denser, it indicates a stronger magnetic field.

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• 5.

### Magnetic forces ________ and ________ each other

Attract and repel
Explanation
Magnetic forces have the ability to both attract and repel each other. When two magnets with opposite poles (north and south) are brought close to each other, they will attract and pull towards each other. On the other hand, when two magnets with the same poles (north and north or south and south) are brought close to each other, they will repel and push away from each other. This phenomenon is due to the magnetic fields generated by the magnets interacting with each other.

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• 6.

### What causes magnetism?

• A.

Charged electric particles

• B.

Friction

• C.

Gravity

• D.

Earth's atmosphere

A. Charged electric particles
Explanation
Charged electric particles cause magnetism because when these particles are in motion, they create a magnetic field. This magnetic field can interact with other magnetic fields and objects, resulting in the phenomenon of magnetism.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Oct 26, 2016
Quiz Created by
Jmattis

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