If the current in an electric bulb decreases by 0.5% then the power in the bulb decreases by approximately ______?

Answer: 1%
Explanation
  • Power in an electric bulb is given by P = I²R.
  • If the current I decreases by 0.5%, then power decreases by (0.5 × 2) = 1% because power depends on the square of current.
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