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Since the light bulb is purely resistive (has very little reactance), you can just measure the RMS voltage across the light bulb (usually 120 V) and the RMS current going through the light bulb. Power (P) is:

P = VRMS x IRMS


watts

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Q: How is electric power of a light bulb measured?
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Related questions

What is the power of light bulb mesured in?

a light bulb is measured in watts


What is the power of light bulb measured in?

the unit which are measured for power of lights are watts....


Light bulbs are measured in units of what?

Light bulbs are typically measured in units of watts, which indicate the power consumption of the bulb. This measurement helps determine the brightness of the light produced by the bulb.


What is a light bulb measured in?

A light bulb is typically measured in watts, which indicates its power consumption and brightness output. It can also be measured in lumens, which quantifies the amount of light produced by the bulb.


When was electricity used to power the light bulb?

The first electric light bulb was made in 1880


The power pf light bulbs in Measured in?

The power of light bulbs is measured in watts (W), which indicates the amount of energy consumed and the brightness of the light produced. The higher the wattage, the brighter the light emitted by the bulb.


How come a 60 watt light bulb has a higer temperature than a 40 watt light bulb?

The electric power measured in watts is used to heat a filament in the light bulb (which glows because it is very hot). More energy gives more heat. It's very simple.


How much electricity does electric bulb uses?

The quantity of power consumed by a light bulb is dependant on the wattage of the bulb.


How bright is an led bulb marked 100 lumen?

Brightness is measured in lumens so the bulb has a brightness of 100 lumens. The electrical power the bulb uses is measured in watts. The efficiency of a bulb is expressed in the number of lumens produced per watt of electric power.


Who is inventions led to electric power?

Edison invented the light bulb.


Who Inventions led to electric power?

Edison invented the light bulb.


Which came first the telephone or the electric light bulb?

The electric light bulb came first but was patented later that the telephone was.