Question

three equal capacitor of capacitance 3micro fared each are combined to give an equivalent capacitance of 9micro fared .Draw a circuit diagram to repreawnt the combination​

Answer 1

C

1

=3μF,C

2

=9μF,C

3

=18μF

When connected in serries,

C

s

1

=

C

1

1

+

C

2

1

+

C

3

1

C

s

1

=

3

1

+

9

1

+

18

1

=

18

6+2+1

=

18

9

=

2

1

C

s

=2μF

When connected in parallel,

C

p

=C

1

+C

2

+C

3

=3+9+18=30μF

Ratio of equivalent resistance in series to parallel combination = 2:30 = 1:15