In an electrical circuit the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 5 A (amperes), the resistance is 42 ohms What is the resistance when the current is 2 A ? square

This question is about Ohm's law, which states that the current passing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. The formula for Ohm's law is I = V/R, where I is the current, V is the voltage, and R is the resistance. In this case, we are given that the current is 5 A when the resistance is 42 ohms. We are asked to find the resistance when the current is 2 A. We can set up the equation 5 = V/42 and solve for V, which gives us V = 210. Then we can set up the equation 2 = 210/R and solve for R, which gives us R = 105 ohms. Therefore, the resistance when the current is 2 A is 105 ohms.