Question

As shown in figure give below, 10 similar cells each of emf 1V are connected as shown in figure. Two cells namely third and tenth cells are mistakenly connected in opposite order. The equivalent EMF of the combination of cells now will be ​

Answer 1

Answer:

equivalent potential =6v

Answer 2

Answer:

The correct answer is equal to 6V.

Explanation:

The value of emf(electromotive force) of each cell is equal to 1V.

The polarity of two cells namely the third and tenth cells out of 10 cells is opposite to the other cells.

The equivalent emf of the combination of cells $=E_{1}+E_{2}-E_{3}+E_{4}+E_{5}+E_{6}+E_{7}+E_{8}+E_{9}-E_{10}$

= 1+1-1+1+1+1+1+1+1-1

= 6V

So, the equivalent emf of the combination of cells is equal to 6V.