Question: when your create a series circuit using two bulbs and one dry cell, the bulbs are dim. however, when you create a parallel circuit with two bulbs and one dry cell the bulbs are bight.
1.Why are the two bulbs in the series circuit dim?
2.Why are two bulbs in the parallel circuit bright?
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Answer:
1.With one lamp, it is easy for the current to flow. So there is a big current and the lamp is bright. With several lamps, it is more difficult; the battery can only push a small current round the circuit. So the lamps are dim.