# Express the Power of a 100 Watt Bulb in Cgs Unit. - Physics

Sum

Express the power of a 100 watt bulb in CGS unit.

#### Solution

In SI unit, watt = joule/s
In CGS unit, 1 joule = 10erg
So, 100 watt = 100 joule/s
$= \frac{100 \times {10}^7 \text{erg}}{1 s} = {10}^9 \text{erg}/s$

Concept: Physics Related to Technology and Society
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#### APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 1
Chapter 1 Introduction to Physics
Exercise | Q 11 | Page 10

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