Question

51: If C1 is the capacitance between any two cores
of a 3-core cable, and C2 is the capacitance between
any core and the sheath, then the measured value of
the capacitance between any two cores with the third
core isolated is equal to
3057083979
c1c2/(2C1+C2)
0.5(3C1+C2)
302
Both A and B​

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.