Question

The brightness of a bulb varies when the electricity of your house fluctuates . Why is it so?

PLEASE ANSWER THIS...​

Answer 1

Answer:

First of all, the bulb's brightness, light (and heat) energy, depends on the power being input into the bulb. ... So technically speaking brightness depends on both voltage and current. An increase in either voltage or current will increase the brightness of a bulb.

Step-by-step explanation:

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