Oliver builds a circuit connecting a light bulb to a battery with wires, leaving a gap in one of the wires. He places several objects across the gap to close the loop. He wants to see which objects allow electricity to flow and turn on the light bulb. Why do some materials allow electricity to flow through while others do not?
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Answer:
resistance
Explanation:
resistor is a material which opposes the flow of current. and it allows the required amunt of current to flow through the bulb
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