AP EAPCET 07-Jul-2022 Shift 2 Paper

The given situation is shown below :

In series combination, equivalent capacity is given by

1

Ceq

=

1

C1

+

1

C2

+....+

1

C25

=

1

1×10−6

+

1

1×10−6

+.....+25‌ terms ‌
=

25

1×10−6

...[∴C=1×10−6F]
or Ceq=

1

25

×10−6=4×10−8F
Now, given potential difference across this combination, V=100V
So, charge on combination
Q=CeqV=4×10−8×100
=4×10−6C