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Questions and Answers
Which of the following is true about the magnetic effect of electric current?
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?
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?
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?
What is the direction of magnetic lines of force?
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What is the behavior of magnetic lines of force?
What is the behavior of magnetic lines of force?
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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 materials is commonly used to make the body or core of electric devices such as motors and generators?
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Which of the following is NOT true about magnetic lines of force?
Which of the following is NOT true about magnetic lines of force?
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What is the name given to the magnetic effect produced when electric current flows in a conductor?
What is the name given to the magnetic effect produced when electric current flows in a conductor?
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What happens when an N-pole and an S-pole are brought close to each other?
What happens when an N-pole and an S-pole are brought close to each other?
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What is the direction of magnetic lines of force?
What is the direction of magnetic lines of force?
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