Question

Example 61. In the circuit shown in Fig. 2.75, if the point
C is earthed and point A is given a potential of +1200 V, find
the charge on each capacitor and the potential at the point B.
C₂
C
IH
1200 V
V=0
4 uF
C₂
A
B
3 uF
С
2uF
Fig. 2.75​

Answer 1

Explanation:

Potential of =+1200V

Point A and point B is earthed R

0

at point P,

equivalent capacitance,

6+3

(4+2)×3

=

9

6×3

=2μF

Now, V

P

at point P =V

P

=1200×

3

1

=400V

V

P

is passing through only 3μF.