A parallel-plate air capacitor is made by using two plates 16 cm square , spaced 3.1...

A parallel-plate air capacitor is made by using two plates 16 cm square , spaced 3.1 mm apart. It is connected to a 12-V Battery

(a) What is the capacitance?

Answer is 73 pF

(b) What is the charge on each plate?

Answer is 880 pC

(c) What is the electric field between the plates?

Answer is 3900 V/M

(d) What is the energy stored in the capacitor?

Answer is 5.3 nJ

(e) The battery is disconnected and then the plates are pulled apart to a separation of 7.4 mm. What is the capacitance in this case?

(f) What is the charge on each plate in this case?

(g) What is the electric field between the plates in this case?

(h) What is the energy stored in the capacitor?

Please answer (e), (f), (g), & (h)

Expert Solution

genius_generous answered 2 years ago

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