Question

Dexive equation of induced emf in the rod which is sliding
on two sides of U Shaped frame placed perpendicular
to magnetic field​

Answer 1

Explanation:

Some scales, such as the traditional beam balance, measure mass directly by counteracting the downward force by another equal downward force on the opposite side of the pivot. On a beam balance, you add enough mass to the opposite pan to counterbalance the unknown mass. No force is measured.