3 years ago

What is the source of energy

Physics

1 answer:

liberstina [14]3 years ago

8 0

Fossil Fuels is the largest source for energy

Hope this is what you were asking :)

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A 2.0 µF capacitor is charged through a 50,000 ohm resistor. How long does it take for the capacitor to reach 90% of full charge

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Answer:

0.23 s

Explanation:

First of all, let's find the time constant of the circuit:

$\tau=RC$

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$0.90 Q_0 = Q_0 (1-e^{-t/\tau})\\0.90=1-e^{-t/\tau}\\e^{-t/\tau}=1-0.90=0.10\\-\frac{t}{\tau}=ln(0.10)\\t=-\tau ln(0.10)=(0.1 s)ln(0.10)=0.23 s$

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3 years ago

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What is the source of energy​

What is the source of energy