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Figure shows a capacitor made of two circular plates each of radius  \(12\mathit{cm}\) and separated by  \(5.0\mathit{cm.}\)  The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to  \(0.15A\) . Obtain the displacement current across the plates.
Question: Figure shows a capacitor made of two circular plates each of radius  12mathit{cm} and separated by  5.0mathit{cm.}  The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to  0.15A . Obtain the displacement current across the plates.

Answer

0.15 A
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Solution

Distance between the capacitor plates,  \(d=5\mathit{cm}=0.05m\)  
Radius of circular plate,  \(r=12\mathit{cm}=0.12m\) 
Constant charging current,  \(I=0.15A\) 
Displacement current =  \(0.15A\) 
As displacement current is equal to conduction current across the capacitor plates.
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