Q. 25.0( 2 Votes )

Two batteries of A. The equivalent emf εeq of the two cells is between ε1 and ε2, i.e. ε1< εeq < ε2.

B. The equivalent emf εeq is smaller than ε1.

C. The εeq is given by εeq = ε1 + ε2 always.

D. εeq is independent of internal resistances r1 and r2.

Answer :

And are in parallel connection.

The equivalent emf will be

The equivalent emf depends on the and . So option D. is wrong.

Equivalent emf is not equal to ε1 + ε2. So option C. is wrong.

From the above equation is can’t be smaller than ε1. So option B. also wrong

So option A. is the correct answer.

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