Question

Following devices are lighted for the same time under the same power supply.
1. Electric incandescent bulb
2. Compact fluorescent lamp
3. Fluorescent tube light
Which of the following devices produces maximum heat?

• A. Electric incandescent bulb produces maximum heat.
• B. Compact fluorescent lamp produces maximum heat.
• C. Fluorescent tube light produces maximum heat.
• D. All will produce the same amount of heat.

Answer 1

The correct option is A Electric incandescent bulb produces maximum heat.

All the three given bulbs are used for lighting but also gives heat. Heat produced by the incandescent bulb is more than that produced by compact fluorescent lamps (CFLs) and fluorescent tube lights.