Electrostatics Question 531

Question: Three capacitors of capacitances 3μF, 9μF and 18μF are connected once in series and another time in parallel. The ratio of equivalent capacitance in the two cases (CsCp) will be [CPMT 1990]

Options:

A) 1 : 15

B) 15 : 1

C) 1 : 1

D) 1 : 3

Show Answer

Answer:

Correct Answer: A

Solution:

1Cs=13+19+118=12

therefore Cs=2μF

Cp=3+9+18=30μF

therefore CsCp=230=115



NCERT Chapter Video Solution

Dual Pane