Solve.
-According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 7 volts are applied, the current is 2 amperes. What is the current when 6 volts are applied?
A)15 amperes
B)3.5 amperes
C)21 amperes
D)1.71 amperes

Question

Quizplus · Accepted Answer

Ohm's law states that I = V/R, where I is the current, V is the voltage, and R is the resistance. Given that 7 volts produce 2 amperes, we can find the resistance (R = V/I = 7/2). To find the current at 6 volts, we use the same resistance: I = V/R = 6/(7/2) = 12/7 = 1.71 amperes.

Solve. -According to Ohm's Law, the Electric Current I, in Amperes