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lochelle
lochelle asks:
Q:

which has more power a lightbulb or a battery ?

In Topics: Science fair
> 60 days ago

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Expert

greenprof2
Nov 25, 2010
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What the Expert Says:

The battery! A light bulb has no power on its own and must be connected to a power source to work.

Michael Bentley, EdD, Expert Panelist

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Additional Answers (3)

pigtoria
pigtoria writes:
Hi Lochelle....

Lightbulbs are measured in watt.  Batteries are measured in volt.

A watt is a unit of electrical power, which expresses how much energy gets used or transmitted per second. A volt is a measure of electric potential, which expresses how much energy you get per unit charge.

The relationship of watt and volt is tied to ampere with the formula:

watt = ampere * volt

Whether a lightbulb or battery has more power depends on the size of the lightbulb and the size and type of battery.

Hope this helps!

Vicki
> 60 days ago

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hiber
hiber writes:
a battery
Resources:
> 60 days ago

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5thgrader
5thgrader writes:
a battery because it gives it power to a lightbulb
> 60 days ago

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