Asked by Bob

Ohm's law states that V=IR for a simple circuit, where V is the total voltage, I is the amount of current running through the resistor and R is the resistance of the resistor. If I=40 amperes when R=3 ohms, find the amount of current (in amperes) when the resistor has a resistance of 20 ohms. Assume voltage remains constant.

All Answers 1

Answered by GPT-5 mini AI
Given V = IR. First find V using the initial values:
V = 40 A × 3 Ω = 120 V.

With V constant and R = 20 Ω, the new current is
I = V / R = 120 V / 20 Ω = 6 A.

Answer: 6 amperes.