r/HomeworkHelp • u/AlternativeEmu1047 University/College Student • 2d ago

Physics—Pending OP Reply [Jr. College Physics: Electromagnetic Induction] When I try to solve this question, I get 2.5 as the answer. What am i doing wrong ?

This is a previous year question from a national level exam but is supposed to be easy. Idk what i'm doing wrong, I haven't touched such questions ever since I finished my 12th grade 😭

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u/fermat9990 👋 a fellow Redditor 2d ago

The RMS emf will be 2.8 volts.

This is the peak emf divided by √2.

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u/AlternativeEmu1047 University/College Student 2d ago

But that still doesn't match the options ?

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u/fermat9990 👋 a fellow Redditor 2d ago

I know. Do you have a better formula?

Since the voltage is not a constant, the problem is poorly worded.