Question

Three 1.5V cells are connected in series in a circuit. What is the total potential difference?

Answer 1

answer : total potential difference = 4.5 V

A cell or battery is the source of energy. a cell provides 'push' in a circuit that makes current flow. cell potential is also known as electromotive force (EMF ) of battery.

if cells are joined in series combination it means cells have joined one after other. when cells are connected in series their voltages are summed, so three 1.5V cells connected in series provide 3 × 1.5V = 4.5 V

hence, total potential difference = 4.5 V

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Answer 2

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In a circuit, cells provide the 'push' that makes current flow. This is sometimes called its potential difference, or voltage. ... When cells are connected in series their voltages are summed, so two 1.5 V cells connected in series provide 3 V, while three cells in series provide 4.5 V.