Question: A capacitor consists of two 6.0-cm-diameter circular plates separated by (1.0 mathrm{~mm}). The plates are charged to (150 mathrm{~V}), then the battery is removed. a.

A capacitor consists of two 6.0-cm-diameter circular plates separated by $1.0 \mathrm{~mm}$. The plates are charged to $150 \mathrm{~V}$, then the battery is removed.

a. How much energy is stored in the capacitor?

b. How much work must be done to pull the plates apart to where the distance between them is $2.0 \mathrm{~mm}$ ?

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a To calculate the energy stored in the capacitor we can use the formula for the energy stored in a capacitor U frac12 CV2 where U is the energy store... View full answer

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