SCIENCE
Electric Motor
Which of the following principles explains how an electric motors work?
A. Magnetic Force
B. Electrolysis
C. Magnetism
D. Electromagnetism
ANSWER:
D. ELECTROMAGNETISM
Magnetic force is described as attractions and repulsion between charged particles. Even that it has similarity with the electric motors, it doesn't still explains the electric motor.
Electrolysis is the separation of elements in a compound. Electric motor is not a compound, so there is nothing to separate in that. Electrolysis mostly applies on liquids.
Magnetism is a known mixed electromagnetic field or force, that is far to explain how will an electric motors work.
Electromagnetism is the right answer. Based on electromagnetism, electrical motors produces certain magnetic field together with an electric current via loops.
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