Calculating Capacitance for a Given Energy and Voltage?

In summary, capacitance refers to the ability of a capacitor to store electric charge and is measured in Farads (F). It is affected by factors such as plate distance, surface area, and dielectric material. The type of dielectric material used can increase or decrease capacitance. Changing plate distance can also affect capacitance. The capacitance of a capacitor can be altered by changing physical properties or adding/removing plates.
  • #1
truettct
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Homework Statement



A capacitor stores 0.12 J energy when connected to 6 V voltage source. What is the capacitance of this capacitor? (UNIT:uF)

I am just not sure how to go about answering this question.

The formula for capacitance is C=(Q/V), but I am not sure how to incorporate energy into that formula.

Any help would be appreciated

Thanks
 
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  • #2
E=1/2c*v*v.
 

What is capacitance and how is it measured?

Capacitance refers to the ability of a capacitor to store electric charge. It is measured in units of Farads (F) and can be determined by dividing the charge stored on the capacitor by the voltage applied to it.

What factors affect the capacitance of a capacitor?

The capacitance of a capacitor is affected by several factors such as the distance between the plates, the surface area of the plates, and the type of dielectric material between the plates. The capacitance also increases with the number of plates in the capacitor.

How does the dielectric material affect the capacitance?

The dielectric material between the plates of a capacitor acts as an insulator, preventing the flow of current between the plates. The type of dielectric material used can affect the capacitance by increasing or decreasing the amount of charge that can be stored on the plates.

What happens to the capacitance when the distance between the plates changes?

The capacitance of a capacitor is inversely proportional to the distance between the plates. This means that as the distance between the plates decreases, the capacitance increases and vice versa.

Can the capacitance of a capacitor be changed?

Yes, the capacitance of a capacitor can be changed by altering the physical properties of the capacitor such as the distance between the plates, the surface area of the plates, and the type of dielectric material used. It can also be changed by adding or removing plates from the capacitor.

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