3 part hypothetical battery question

In summary, the total stored energy at the points in time before the two capacitors are connected is 0 J, after they are connected is 158.67 J, and the change in energy is 158.67 J. This can be determined by using the equations for capacitors and solving for the voltage and then using the formula for energy stored in a capacitor.
  • #1
almedmat
5
0

Homework Statement


A 3.50 µF capacitor is charged by a 13.0 V battery. It is disconnected from the battery and then connected to an uncharged 4.44 µF capacitor (Fig. 17-29).

17_28.gif

Figure 17-29
Determine the total stored energy at the following points in time.

(a) before the two capacitors are connected
____ J
(b) after they are connected
____ J
(c) What is the change in energy?
____ J


Homework Equations



-----

The Attempt at a Solution


No idea
 
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  • #2
Didn't you find any relevant equation about the capacitor in your textbook?
For example, the relation between capacitor, charge stored in the capacitor and voltage across the plates of the capacitor. What is the expression for the energy stored in the capacitor?
 
  • #3
After the capacitors are connected, the charges on the two capacitors must sum to the initial charge on C1. The voltage across the two capacitors must be equal. Write out equations representing these two facts, and solve for the voltage. Then remember that E=(1/2)CV^2.
 

Related to 3 part hypothetical battery question

1. What is a 3 part hypothetical battery question?

A 3 part hypothetical battery question is a type of scientific inquiry that involves proposing a hypothetical battery model and asking three specific questions about its design, function, or application. It is often used in physics and chemistry experiments to encourage critical thinking and problem-solving skills.

2. How do you construct a 3 part hypothetical battery question?

To construct a 3 part hypothetical battery question, first identify the key components of a battery such as the anode, cathode, and electrolyte. Then, pose a specific question about each component, such as "What material would be the best for the anode in this battery?" or "How could the electrolyte affect the battery's performance?" Finally, tie all three questions together to create a cohesive and thought-provoking question.

3. What is the purpose of a 3 part hypothetical battery question?

The purpose of a 3 part hypothetical battery question is to stimulate critical thinking and problem-solving skills in the context of battery design and function. By breaking down a complex concept into smaller, specific questions, it encourages the student or researcher to consider multiple factors and potential solutions.

4. Can a 3 part hypothetical battery question be used in real-life scenarios?

Absolutely. While it is often used in scientific experiments and educational settings, a 3 part hypothetical battery question can also be applied to real-life scenarios in the field of battery design and development. By considering different factors and variables, it can help researchers and engineers come up with more efficient and innovative battery designs.

5. Are there any limitations to using a 3 part hypothetical battery question?

Like any scientific inquiry, a 3 part hypothetical battery question has its limitations. It may not account for all variables and factors that could affect the performance of a battery, and the proposed solutions may not always be feasible in real-world applications. However, it is still a valuable tool for critical thinking and problem-solving in the field of battery research and development.

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