What is the motor effect?
The motor effect is the phenomenon that when a conductor carrying a current is placed in a magnetic field, the magnet producing the field and the conductor will exert a force on each other.
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When will a wire carrying a current experience a larger force: when it is parallel to the magnetic field, or perpendicular to the magnetic field?
To experience the full force, a current-carrying wire must be placed perpendicular to the magnetic field.
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What is a horseshoe magnet?
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What is Fleming's left hand rule?
Flemings left hand rule is a technique used to figure out the direction of the force experienced by a current carrying wire in a magnetic field.
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Give 4 ways to increase the strength of the motor effect.
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What is the formula to find the force exerted by the motor effect?
(note this formula is given to you in the exam)
F = force exerted on wire
B = magnetic field strength
I = current in the wire
L = length of wire that crosses the magnetic field
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