Question: A circular parallel - plate, air - filled capacitor is being charged. The circular plates have radius 4 . 0 0 cm , and at

A circular parallel-plate, air-filled capacitor is being charged. The circular plates have
radius 4.00 cm, and at a particular instant the conduction current in the wires is 0.520 A.(a)
What is the displacement current density jD in the air space between the plates?
(b) What is the rate at which the electric field between the plates is changing?

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