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3 years ago

14

A light bulb with a resistance of 2.9 ohms is operated using a 1.5 volt battery. At what rate is electrical energy transformed i

n the ligthbulb?
1) 0.52W
2)0.78W
3)4.4W
4)6.5W

1 answer:

Dafna1 [17]3 years ago

8 0

Answer:

2) 0/78 W

Explanation:

found a online quiz with this question took the quiz and got this question correct so i know it will work.

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If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an RC discharge thr

Agata [3.3K]

Answer:

Resistance in the flash tube, $R=3.97\times 10^{-3}\ \Omega$

Explanation:

It is given that,

Speed of the bullet, v = 500 m/s

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R is the resistance in the flash tube

$R=\dfrac{\tau}{C}$ ..........(1)

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Equation (1) becomes :

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