1)

Two capacitors C1  and C2 are charged to 120 V and 200 V respectively. It is found that by connecting them together the  potential  on each one can be made zero, then


A) $5C_{1}=3C_{2}$

B) $3C_{1}=5C_{2}$

C) $3C_{1}+5C_{2}$=0

D) $9C_{1}=4C_{2}$

Answer:

Option B,C

Explanation:

Polarity sholud be mentioned in the question . Potential on each of them can be zero , if qnet=0

or  $q_{1}\pm q_{2}=0$

   or   $120C_{1}\pm 200C_{2}=0$

or   $3C_{1}\pm 5C_{2}=0$