The Motor Effect (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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Motor effect
Motor effect
Wire with current experiences force in a magnetic field
What does a current-carrying wire produce?
What does a current-carrying wire produce?
Its own magnetic field
What happens when 2 magnetic fields interact on a wire?
What happens when 2 magnetic fields interact on a wire?
A force on the wire
Direction of motor effect force
Direction of motor effect force
Right angle to current and magnetic field directions
Wire angle to field for maximum force
Wire angle to field for maximum force
90 degrees (right angle)
Force on wire not at 90° to field
Force on wire not at 90° to field
Less force
Force on wire parallel to magnetic field
Force on wire parallel to magnetic field
No force
What 2 things are needed to find force direction?
What 2 things are needed to find force direction?
Magnetic field direction and current direction
What does the motor effect force do to the wire?
What does the motor effect force do to the wire?
Pushes it out of the field
Where wire is placed for motor effect
Where wire is placed for motor effect
Between north and south poles of permanent magnets