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Observe the circuit and state whether th...

Observe the circuit and state whether the cells are connected in series or parallel. If each cell is of e.m.f. `1.5 V`, then find the total e.m.f applied across the bulb connected.

Text Solution

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The positive terminal of each cell is connected to the negative terminal of the other cell. This shows that the cells are connected in series. When cells are connected in series,
total e.m.f `= E_1 + E_2 + E_3`
` = 1.5+1.5+1.5=4.5 V`
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