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Magnetism and its Role in Electric Devices

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Magnetism and its Role in Electric Devices

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Questions and Answers

Which of the following is true about the magnetic effect of electric current?

It is not related to magnetic materials

It is produced when electric current flows in a non-conductor

It is not required for the operation of electric devices

It is the reason why electric devices such as motors and generators work (correct)

What is the path line along which an isolated N pole moves called?

Isolated line of force

Conductor line of force

Electric line of force

Magnetic line of force (correct)

What happens when N-pole and N-pole are brought close to each other?

They repel each other (correct)

They create a magnetic field

They have no effect on each other

They attract each other

What is the direction of magnetic lines of force?

From north pole to south pole Signup and view all the answers

What is the behavior of magnetic lines of force?

They behave like a stretched elastic band Signup and view all the answers

Which of the following materials is commonly used to make the body or core of electric devices such as motors and generators?

Steel Signup and view all the answers

Which of the following is NOT true about magnetic lines of force?

Magnetic lines of force never intersect each other. Signup and view all the answers

Magnetism and its Role in Electric Devices

Choose a study mode

Podcast

Questions and Answers

Which of the following is true about the magnetic effect of electric current?

What is the path line along which an isolated N pole moves called?

What happens when N-pole and N-pole are brought close to each other?

What is the direction of magnetic lines of force?

What is the behavior of magnetic lines of force?

Which of the following materials is commonly used to make the body or core of electric devices such as motors and generators?

Which of the following is NOT true about magnetic lines of force?

What is the name given to the magnetic effect produced when electric current flows in a conductor?

What happens when an N-pole and an S-pole are brought close to each other?

What is the direction of magnetic lines of force?

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