Question

A ballast starts the lamp and regulates the current. What else does it do?

a). Corrects the color of the light produced by the lamp
b). Corrects for the inductive load of the lamp to achieve a power factor of 1
c). Balances the weight of the lamp in the fixture by "ballasting" the lighter end
d). None of the above

Answer 1

A ballast in a CFL bulb regulates the current and corrects for the inductive load to achieve a power factor of 1.

Step-by-step explanation:

A ballast is a device used in CFL bulbs to start the lamp and regulate the current. In addition to these functions, the ballast also corrects for the inductive load of the lamp to achieve a power factor of 1. The power factor is a measure of how effectively electrical power is being used, and a power factor of 1 means that the voltage and current are in phase and the lamp is using power efficiently. Therefore, the correct answer is option b) Corrects for the inductive load of the lamp to achieve a power factor of 1.