A Parallel Plate Capacitor with Radius 21 Cm Is Connected $\varOmega$

question 45

Multiple Choice

A parallel plate capacitor with radius 21 cm is connected in series with a 15-V battery.A switch is thrown which causes the capacitor to discharge through a 150- $\varOmega$ resistor.What is the displacement current between the plates at this time?

• A)0.10 A
• B)0.20 mA
• C)0.14 A
• D)You need to know the separation of the plates.

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