Question

A CFL bulb has an efficiency of 0.42 and a imput of 14W. what is the output power

I really need help.

Answer 1

The output power is 5.88 W.

Step-by-step explanation:

We have,

Efficiency of CFL bulb is 0.42

Input power is 14 W

It is required to find the output power. The ratio of output power to the input power is called efficiency. It is given by :

`\eta=(P_o)/(P_i)`

`P_o=\eta* P_i\\\\P_o=0.42* 14\\\\P_o=5.88\ W`

So, the output power is 5.88 W.