GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nikola Tesla created what?
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coil, AC, induction motor
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telephone
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phonograph and light bulb
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cotton gin
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Explanation:
Detailed explanation-1: -Nikola Tesla invented the induction motor with rotating magnetic field that made unit drives for machines feasible and made AC power transmission an economic necessity.
Detailed explanation-2: -Experimenting on his AC motor, Tesla built a motor consisting of a disc-shaped iron rotor mounted on a shaft. The stator was two coils of insulated wire mounted on an oblong brass ring. The stator’s windings were connected to an AC electrical generator.
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