The primary reason a light bulb emits light is due to

Physics

2 answers:

RideAnS [48]4 years ago

6 0

Answer: Short answer is resistance.

Mashutka [201]4 years ago

5 0

<span>The primary reason a light bulb emits light is due to the heating of the resistance in the filament of the light bulb. In fact, the power dissipated in a resistor is given by
</span> $P=I^2 R$
<span>where I is the current and R the resistance. The larger the resistance or the current in the resistor, the larger the power dissipated. Due to this dissipation of power, the temperature of the filament becomes very high, and the resistance becomes incandescent, emitting light.</span>

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