A circuit has a current of 1 point 2 A If the voltage decreases to one-third of its original amount while the resistance remains constant, what will be the resulting current?

By Ohm’s law, current is directly proportional to voltage when resistance stays constant. If the voltage falls to one-third of its original value, the current also falls to one-third: 1.2 A ÷ 3 = 0.4 A. The resulting current is 0.4 A, choice A.

AI-written and checked against the verified answer.