Physics - Capacitor Question with Solution | TestHub
PhysicsCapacitorCapacitanceMedium2 minQB
PhysicsMediumsingle choice
A parallel plate capacitor is completely filled by an insulating material 3 mm thick and of relative permittivity 4 . The distance between the plates is increased to allow the insertion of a second sheet 5 mm thick and of relative permittivity also. If the capacitance of the capacitor so formed is one-half of the original capacitance, then the value of -
Options:
Answer:
A
Solution:
Let the original capacitance be . Given mm and , so .
The new capacitor has two dielectrics in series. The total distance is mm.
The new capacitance .
Given .
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Stream:JEESubject:PhysicsTopic:CapacitorSubtopic:Capacitance
⏱ 2mℹ️ Source: QB
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