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प्रश्न
What does the negative sign in Faraday’s First Law indicate?
पर्याय
That the magnitude of every induced emf is less than zero
That current cannot flow in a closed coil
The direction of the induced emf, as per Lenz’s law
That magnetic flux cannot increase
MCQ
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उत्तर
The magnitude of induced emf is related to the rate of change of flux. The negative sign expresses its direction according to Lenz’s law.
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