Question

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

Answer:- Two batteries provide a greater flow of electricity then one. More chemical energy is converted to electrical energy when two cells are used. Consequently the flow of electricity is greater.​

Answer 1

Answer:

Two batteries provide a greater flow of electricity then one. QUESTION SEVEN: Ruby has connected two bulbs across two batteries in a simple circuit. ... Cork is an insulator and will break the circuit, which will not light the bulb.

Hope it helps you

Answer 2

QUESTION SIX: Why is a bulb brighter when it is powered by two batteries rather than one. Two batteries provide a greater flow of electricity then one. QUESTION SEVEN: Ruby has connected two bulbs across two batteries in a simple circuit. ... Cork is an insulator and will break the circuit, which will not light the bulb.

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