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What is e.m.f.? |
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Answer» The amount of energy required to drive a unit positive charge through an external circuit connected to a cell is called electromotive force, or EMF. The cell is called the seat of the EMF. Electromotive force, also called emf, the unit for EMF is joule per coulomb. One joule per coulomb is equal to one volt. Hence, the unit for EMF is the volt. Electro magnetic force hai kya ?? |
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