why does a bulb get warmer than the wires that connect it to a battery
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It's all a matter of relative resistance. The amount of current flowing through the wire and the bulb is the same. The power dissipation in a circuit element is proportional to I2R where I is the current and R is the resistance of the element. Since the resistance of the bulb is much more than the resistance of the wire, the bulb gets hot and the wire stays cool.
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Answer:
it occurs because of high-powered resistance
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