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Two air-filled parallel-plate capacitors with capacitances C1 and C2 are connected in series to a battery...

Two air-filled parallel-plate capacitors with capacitances C1 and C2 are connected in series to a battery that has voltage V; C1 = 3.00 μF and C2 = 6.00 μF. The electric field between the plates of capacitor C2 is E02. While the two capacitors remain connected to the battery, a dielectric with dielectric constant K = 4 is inserted between the plates of capacitor C1, completely filling the space between them. After the dielectric is inserted in C1, the electric field between the plates of capacitor C2 is E2.

A) What is the ratio E2/E02?

B) When the dielectric is inserted into C1, does the electric field in C2 increase, decrease, or remain the same?

C) Repeat the calculation in part A for the two capacitors connected to the battery in parallel. What is the ratio E2/E02?

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Here we apply concept of capacitance and electric field between capacitor plate.

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