Power of a resistor

Electricity and Magnetism Level 3

Given the above diagram, what is the maximum possible power in watts that can be delivered to the \(7\Omega\) resistor, if the resistor \(R\) can be adjusted to any value?

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Power of a resistor

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 5 million people

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

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

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