Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityEquivalent ResistanceEasy2 minPYQ_2020
PhysicsEasysingle choice

CapacitorC1of capacity1 μFand capacitorC2of capacity2 μFare separately charged fully by a common battery. The two capacitors are then separately allowed to discharge through equal resistors att=0

Options:

Answer:
C
Solution:

Total potential differenceE0is given to both of the capacitor.
The two capacitors are then separately allowed to discharge through same resistors.
Since both capacitors are charged to same potential difference hence current att=0,I0=E0Rwill be same in both circuits.

Time taken in50 %discharging=RCln(2)

As1stcapacitance is 50% less than that of2ndcapacitance,

hence1 μFwill take less time compared to2 μF

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance
⏱ 2mℹ️ Source: PYQ_2020

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