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balandron [24]
3 years ago
5

A camcorder has a power rating of 11 watts. If the output voltage from its battery is 8 volts, what current does it use?

Chemistry
1 answer:
Reika [66]3 years ago
3 0

The camcorder uses a current of 1.4 A.

<em>P = VI </em>

<em>I</em> = <em>P</em>/<em>V</em> = 11 W/8 V = 1.4 A

<em>Note</em>: The answer can have only <em>one significant figure</em> because that is all you gave for the voltage. However, I calculated the current to two significant figures.

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Answer:

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Explanation:

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The sample size is 601.

Explanation:

Given information:

Confidence interval = 95%

E = 4% = 0.04

From the z table it is clear that the z-value 95% confidence is 1.96.

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n=p(1-p)(\dfrac{z}{E})^2

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n=0.5(1-0.5)(\dfrac{1.96}{0.04})^2

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