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Question

Why is the handle of an ordinary water handpump made longer?


  1. The mechanical advantage decreases with the increase in effort arm.

  2. No change in mechanical advantage.

  3. The mechanical advantage increases with the increase in effort arm.

  4. It will increase the efficiency.


Solution

The correct option is C

The mechanical advantage increases with the increase in effort arm.


As the mechanical advantage increases with the increase in effort erm, so a lesser effort required to operate a handpump with a long handle. That is why the handle of an ordinary handpump is made longer.

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