A set of toothed wheel working together to transfer rotational motion from one gear to the other.
A
Gear
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B
Screw
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C
Pulley
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D
Inclined plane
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Solution
The correct option is C Gear Gear are a set of together wheels working together to transfer rotational motion from one gear to the other. Gear ratio of a gear system is defined as to the ratio of number of teeth in the driving wheel to the number of teeth in the driver wheel.