Question

Find the charge on $2\mu F$.

• A. $18\, \mu F$
• B. $25 \, \mu F$
• C. $15\, \mu F$
• D. $17 \, \mu F$

Answer 1

Answer: (C)

Let potential of A is zero and that of B is V.
Applying charge conservation on given circuit.
1(V - 10) + 2(V - 0) + 5(V - 10) = 0
8V - 60 = 0
$V=\frac{60}{8}=7.5 $
So charge on 2 μF = 2 × 7.5 = 15 μC