Physics PYQ 16 of 288 · Units

In the following which is a fundamental physical quantity?

  1. AForce
  2. BVelocity
  3. CElectric current
  4. DWork
  5. ENone of the above/More than one of the above

66th BPSC Prelims Re-exam 2020

Show answer and explanation

Correct answer: (c) Electric current

Explanation

Electric current is one of the seven fundamental (base) quantities of the SI system: length, mass, time, electric current, temperature, amount of substance and luminous intensity.

Force, velocity and work are derived quantities, built from the base ones (for example, force = mass × acceleration).

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