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eimsori [14]
3 years ago
6

The voltage applied across a given parallel-plate capacitor is doubled. How is the energy stored in the capacitor affected?

Physics
1 answer:
ikadub [295]3 years ago
8 0

Answer:

The energy stored in the capacitor quadruples its original value.

Explanation:

The energy stored in a capacitor is given by the equation

U=\frac{1}{2}CV^2

where

C is the capacitance

V is the voltage across the plates

The capacitance, C, depends only on the properties of the capacitor, so it does not change when the voltage applied is changed.

Instead, in this problem the voltage applied is doubled:

V' = 2V

So the new energy stored is

U'=\frac{1}{2}C(2V)^2=4(\frac{1}{2}CV^2)=4U

so, the energy stored has quadrupled.

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2 years ago
a car traveling at 24 m/s starts to decelerate steadily. It comes to a complete stop in 6 seconds what is its acceleration?
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3 years ago
Why must batteries be connected when the terminal voltage across each of them was measured
photoshop1234 [79]

Batteries are connected when the terminal voltage across each of them was measured because batteries have an internal resistance that is in series with the load.

<h3>What is a chemical reaction?</h3>

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Thus, considering the internal resistance of the batteries, the terminal voltage across each of them was measured.

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brainly.com/question/14976473

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4 0
1 year ago
The rate of change of an object's velocity is called _______.
tamaranim1 [39]

Answer:

The rate of change of an object's velocity is called acceleration.

4 0
3 years ago
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An object moving at a velocity of 32m/s slows to a stop in 4 seconds. What was its acceleration?
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Answer:

8m/s

Explanation:

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3 years ago
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