6C.2 Electric motors Flashcards

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1
Q

a motor effect

A

a wire carrying a current, held within a magnetic field, will experience a force

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2
Q

a magnetic field can affect

A

electric charges

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3
Q

when is the motor rule at its greatest

A

when the magnetic field and the wire are at right angle to each other

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4
Q

what is fleming’s left-hand rule

A

the role for determining the direction of the force generated by the motor effect (page 60)

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5
Q

if a current is parallel to a magnetic field

A

there will be no force

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6
Q

why does the force keep changing directions

A

because as it rotates the current will travel in an opposite direction causing it to rotate back

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