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Torque

A spanner or ...

Question

A spanner (or wrench) has a long handle. Why?

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Solution

This is because the turning effect of a force depends upon the perpendicular distance of the line of action of the applied force from the axis of rotation. Larger the perpendicular distance, less is the force required to turn the body. Therefore, the spanner is provided with a long handle.

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Similar questions

Q. Why does a spanner have a long handle?

Explain the following :

(a) The spanner (or wrench) has a long handle.

(b) The steering wheel of a vehicle is of large diameter.

(c) The hand flour grinder is provided with a handle near the rim.

(d) It is easier to open the door by pushing it at its free end.

(e) A potter turns his wheel by applying a force through the stick near the rim of wheel.

State whether true or false.

A spanner with a longer handle can tighten nuts and bolts with less effort.

Put a pipe over the end of a wrench when trying to turn a stubborn nut on a bolt, to effectively make the wrench handle twice as long, you will increase the torque by

Q. The spanner with a longer handle can tighten nuts and bolts with less effort.

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