Q.12. In the following circuit the current at ammeter X is 2.0 A, what is the reading on a) 1.0 A
c) 3.0 A
b) 2.0 A
d) 4.0 A

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.