Calculating Resistance in a Light Bulb

Understanding Ohm's Law

Ohm's law states that V=IR, where V=voltage, I=current (amps), and R=resistance (in Ohms).

Given Data

There is a current of 0.99 A through a light bulb when its connected to a 9.7 V battery.

Calculating Resistance

Plugging the values into the Ohm's law equation V=IR:

R = V / I

R = 9.7 / 0.99 = 9.8 Ohms

Question

What is the resistance of the light bulb when a current of 0.99 A flows through it from a 9.7 V battery?

Answer

The resistance of the light bulb is 9.8 Ohms.