Electrostatics 6 Question 1
1. A circuit is connected as shown in the figure with the switch $S$ open. When the switch is closed, the total amount of charge that flows from $Y$ to $X$ is
$(2007,3 M)$
(a) zero
(b) $54 \mu C$
(c) $27 \mu C$
(d) $81 \mu C$
Show Answer
Solution:
- From $Y$ to $X$ charge flows to plates $a$ and $b$.
$$ \left(q _a+q _b\right) _i=0,\left(q _a+q _b\right) _f=27 \mu C $$
Initial figure (when switch was open)
Final figure (when switch is closed) $\therefore \quad 27 \mu C$ charge flows from $Y$ to $X$.
$\therefore$ Correct option is (c).
