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Motion in a Plane — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsMotion in a Plane3 Marks
Question
Pick out the two scalar quantities in the following list:
force, angular momentum, work, current, linear momentum, electric field, average velocity, magnetic moment, relative velocity.
✓

Answer

Both Work and current are scalar quantities.

Work done is given by the dot product of force and displacement.

W = (F.S)

Since the dot product of two quantities is always a scalar, therefore work is a scalar physical quantity.

Current is described only by its magnitude. Its direction is not taken into account. Hence, it is a scalar quantity.

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