Electrostatic Potential and Capacitance Part 1

Given, C1=C2=C
When both capacitors are connected in series, their equivalent capacitance will be
‌

1

Cs

=‌

1

C

+‌

1

C

=‌

2

C

‌Cs=‌

C

2

⇒‌‌Cs=‌

C

2

When both capacitors are connected in parallel, their equivalent capacitance will be
Cp=C+C=2C
∴ The ratio of equivalent capacitance in series and parallel combination is
‌

Cs

Cp

‌‌=‌

C∕2

2C

=‌

1

4

⇒‌‌Cs:Cp‌‌=1:4