Question

Two cells of 1.25 V and 0.75 V are connected in series with anode of one connected to anode of the other. The effective voltage will be ______.

Options

• 0.50 V

• 1.25 V

• 0.75 V

• 2.0 V

Answer 1

Two cells of 1.25 V and 0.75 V are connected in series with anode of one connected to anode of the other. The effective voltage will be 0.50 V.

Explanation:

The cells are in opposition.

`"E"_"eq" = "E"_1 - "E"_2`

= 1.25  0.75 = 0.5 V