Brightest bulb

Electricity and Magnetism Level 2

Jane connected four identical light bulbs in a circuit as shown above. She observes that the brightness of bulb \(A\) varies if some of the switches are closed. In which case will bulb \(A\) burn brightest?

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100 Day Summer Challenge

Brightest bulb

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Community

100 Day Summer Challenge

Brightest bulb

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, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

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

Master advanced concepts through explanations,
examples, and problems from the community.

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

Master advanced concepts through explanations,
examples, and problems from the community.

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