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Three identical cells E1, E2, E3 and thr...

Three identical cells `E_1, E_2, E_3` and three identical bulbs `B_1, B_2 and B_3` are connected as shown in the circuit.
Find how `E_1, E_2, E_3 and B_1, B_2, B_3` are connected, whether in parallel or in series?

Text Solution

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All the three cells are connected in series. `B_1 and B_2` are in series whereas `B_3` is in parallel connection. As `B_1` and `B_2` are connected in series, the brightness of them is same and is less than the brightness of `B_3`, which is connected across two cells.
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