ELECTRIC MOTORS
100
B:magnets
The basis of an electric motor is: A:a spark plug B:magnets C:a battery
200
C: both a and b
A motor's motion comes from which property of magnets? A:Like poles repel each other B:Opposite poles attract each other C:both A and B
300
A: the armature, the commuttator, the brushes , the axel , a field magnet ,and a DC power supply
The six basic parts of a simple two-pole motor are: A:the armature, the commutator, the brushes, the axle, a field magnet and a DC power supply B:the armature, the brushes, the battery, the axle, the anchor and a field magnet C:the commutator, the brushes, the casing, a DC power supply and the wires
400
A: a rotor
A motor's armature acts as: A:a rotor B:an anchor C:an axle
500
B:MAGNETISM
When a small motor turns on, the armature spins because of: A:gravity B:magnetism C:inertia
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