Question

what is the principal behind a beam balance​

Answer 1

Answer:

A beam balance works on the principle of moments according to which in equilibrium, the anti-clockwise moment due to the weight of an object on left pan of the beam is equal to the clockwise moment due to the standard weights on the right pan of the beam.

Answer 2

Answer:

A beam balance works on the principle of moments according to which in equilibrium, the anti-clockwise moment due to the weight of an object on left pan of the beam is equal to the clockwise moment due to the standard weights on the right pan of the beam.