Two equal capacitors are first connected in series and then in parallel. The ratio of the equivalent…

Two equal capacitors are first connected in series and then in parallel. The ratio of the equivalent capacities in the two cases will be:
  1. 1:2
  2. 1:4
  3. 4:1
  4. 2:1

Solution

For series combination,

1Ceq1=1C+1C⇒Ceq1=C2

For parallel combination,

Ceq2=C+C⇒Ceq2=2C

⇒Ceq1Ceq2=C/22C=14=1:4

Asked in: JEE Main 2021 (24 Feb Shift 1)

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