The Motor Effect (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
10 questions from this quiz
What is the motor effect?
What is the motor effect?
A current-carrying wire experiences force in a magnetic field
What causes the force on a current-carrying wire in a magnetic field?
What causes the force on a current-carrying wire in a magnetic field?
Interaction of two magnetic fields
At what angle is the force to both the current direction and the magnetic field?
At what angle is the force to both the current direction and the magnetic field?
Right angle (90°)
At what angle to the field must the wire be to experience the full force?
At what angle to the field must the wire be to experience the full force?
90°
What force does a wire experience if it runs in the same direction as the magnetic field?
What force does a wire experience if it runs in the same direction as the magnetic field?
No force
What happens if the wire is at an angle other than 90° to the magnetic field?
What happens if the wire is at an angle other than 90° to the magnetic field?
It experiences less force
What does a current-carrying wire produce?
What does a current-carrying wire produce?
Its own magnetic field
What two things are needed to find the direction of the force on a wire?
What two things are needed to find the direction of the force on a wire?
Magnetic field direction & current direction
What does the interaction between magnetic fields do to the wire?
What does the interaction between magnetic fields do to the wire?
Pushes it out of the field
Where is a current-carrying wire typically placed to demonstrate the motor effect?
Where is a current-carrying wire typically placed to demonstrate the motor effect?
Between N and S poles of magnets