How to Calculate Lamp's Resistance with Given Voltage and Current

What is the equation to find out the resistance of a lamp connected to a 24 volt battery with a current of 3 amps flowing through it?

a. R = V/I

b. V = IR

c. I = V/R

Answer:

The correct equation to find out the resistance of a lamp connected to a 24 volt battery with a current of 3 amps flowing through it is: R = V/I

To calculate the resistance of the lamp, you can use the formula R = V/I. In this case, the voltage V is 24 volts and the current I is 3 amps. By substituting these values into the formula, you get:

R = 24 volts / 3 amps

R = 8 ohms

Therefore, the resistance of the lamp is 8 ohms when a current of 3 amps flows through it and it is connected to a 24 volt battery.