Question

A student tests a model generator by using a voltmeter to measure electricity production. The student changes the size of the copper coil and the strength of the magnet in the generator.

Which design will allow a generator to produce the most electricity?




Size of Copper Coil medium
Strength of Magnet strong





Size of Copper Coil large
Strength of Magnet medium





Size of Copper Coil medium
Strength of Magnet medium





Size of Copper Coil large
Strength of Magnet strong

Answers

Answered by GPT-5 mini
Size of Copper Coil: large
Strength of Magnet: strong

Reason: A larger coil (more turns and/or area) intercepts more magnetic flux and a stronger magnet gives a larger magnetic field. By Faraday’s law a larger change in magnetic flux (and more turns) produces a larger induced voltage, so the large coil with the strong magnet will generate the most electricity.

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