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# Why is the CFL better in comparison to a bulb?(A) Because bulbs produce heat which results in wastage of electricity and CFL saves electricity. (B) Because bulb produce heat which results in production of more electricity than CFL(C) Because CFLs size is bigger than the bulb(D) Because CFL produces heat which results in saving electricity.

Last updated date: 09th Aug 2024
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Hint The higher the heat generated by a machine after electricity has passed through it, the lower its efficiency, and the lower the heat generated, the higher is the efficiency. CFL is more efficient than bulbs as less heat is produced.
Formula used: In this solution we will be using the following formulae;
$\eta = \dfrac{{{E_{in}} - {E_{heat}}}}{{{E_{in}}}}$ where ${E_{in}}$ is the energy input, and ${E_{heat}}$ is the energy converted to heat and $\eta$ is the efficiency.

$\eta = \dfrac{{{E_{in}} - {E_{heat}}}}{{{E_{in}}}}$ where ${E_{in}}$ is the energy input, and ${E_{heat}}$ is the energy converted to heat. Hence, the higher the energy converted to heat, the lower the efficiency.