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Question

Why is the bulb brighter when it is powered by two cells rather than one?

A
Because the flow electricity in the circuit is less
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B
Because the flow of electricity in the circuit is the same
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C
Because the flow of electricity in the circuit is greater
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D
None of these
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Solution

The correct option is B Because the flow of electricity in the circuit is greater
More chemical energy is converted to electrical energy when two cells are used. Consequently the flow of electricity is greater.

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