We'll Share The Bill

Electricity and Magnetism Level 1

Tom and Harry are roommates whose ceiling lights are connected in a series circuit. They agreed to each install a \(100 \text{ W}\) bulb in their rooms, and split the electricity bill equally.

However, Tom decides to get more light at Harry’s expense. Thinking that a higher wattage bulb is better, Tom installed a \(200 \text{ W}\) bulb. Harry being fair, installed a \(100 \text{ W}\) bulb.

Will Tom succeed in cheating Harry?

Details and Assumptions:

Both the bulbs have equal voltage ratings.

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 7 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.