Effective capacitance of parallel combination of two capacitors C 1 and C 2 is 10µF. When these capacitors are individually connected to a voltage source of 1V, the energy stored in the capacitor C 2 is 4 times that of C 1 . If these capacitors are connected in series, their effective capacitance will be
Text Solution
Verified by ExpertsThe correct answer is:
D
Given C 1 + C 2 = 10µF …(i)
⇒ 4C 1 = C 2 …(ii)
from equation (i) &
C 1 = 2µF
C 2 = 8µF
If they are in series
C eq. = 
= 1.6µF
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