Electromagnetism and Right Hand Rules

The figure shows the structure of a motor. Which of the following will not affect the speed of rotation of the motor?

• The current in the coil

• Strength of the magnetic field

• The number of turns of wire in the coil

• The direction of the current in the coil

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Magnetic field produced around a straight conductor due to current in it is given by

• Fleming's right hand rule

• Right hand grip rule

• Clock rule

• Fleming's left hand rule

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NGSS.HS-PS2-5

c represented by

• direction of magnetic field

• direction of rotation

• direction of force

• direction of magnitude current

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Diagram shows a current–carrying conductor placed between the poles of two magnet bars. Which diagram shows the resulting magnetic field ?

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NGSS.HS-PS2-5

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Which is the correct rule to determine the direction of the force or motion of the conductor carrying current in a magnetic field?

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which diagram shows the correct magnetic field pattern of the current-carrying coil?

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

If a person winds a coil of wire around a steel rod, and then passes an electric current through the wire, then:

• the steel rod becomes electrified and should not be touched

• the steel rod becomes magnetised

• the wire becomes magnetised

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NGSS.HS-PS2-5

Which end of the solenoid will be a N pole?

• A

• B

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

The area around a magnet is called the .....

• attraction zone

• work area

• magnetic field

• hot zone

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NGSS.HS-PS3-5

A magnet can move in a coil of wire to produce electricity in which system?

• Generator

• Motor

• Magnet

• Transformer

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NGSS.HS-PS2-5

NGSS.HS-PS3-5