what is emf?

Asked by  | 14th May, 2013, 09:40: PM

Expert Answer:

Emf is the electromotive force of a battery, which basically means the voltage that is generated by teh battery. It is a measure of the capacity of the battery to supply electricity. The electricity which can be generated by the battery is measured in terms of its emf. If the battery has no internal resistance then its terminal voltage will be same as its emf. If a battery has emf E and internal resistance R and it gives a current I, then the terminal voltage of the battery will be given by
V=E-IR

Answered by  | 15th May, 2013, 01:38: PM

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