Question

the pd across the plates of a condenser is 60 V and it's capacity is 12uf. another condenser of capacitance 24uf is connected in series and its free plate is earthed. then, the of across the 12uf condenser will be?​

Answer 1

Answer:

Given : C

1

=3μF C

2

=6μF C

3

=6μF

Equivalent capacitance for series combination

C

eq

1

=

C

1

1

+

C

2

1

+

C

3

1

C

eq

1

=

3

1

+

6

1

+

6

1

⟹C

eq

=1.5μF

Thus the charge flowing through the circuit q=C

eq

V

q=1.5μF×120 volt =180μC

Potential difference across 3μF, V

1

=

C

1

q

=

3μF

180μC

=60 volt

Explanation:

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