Capacitors Physics - Capacitors

• A
  $\frac{\text{Q}_1}{\text{Q}_2}<\frac{\text{C}_1}{\text{C}_2}$
• ✓
  $\frac{\text{Q}_1}{\text{Q}_2}=\frac{\text{C}_1}{\text{C}_2}$
• C
  $\frac{\text{Q}_1}{\text{Q}_2}>\frac{\text{C}_1}{\text{C}_2}$
• D
  $\frac{\text{Q}_1}{\text{Q}_2}=\frac{\text{C}_2}{\text{C}_1}$

Answer: B.

• A
  $2C$ and $2V$
• B
  $C$ and $2V$
• ✓
  $2C$ and $V$
• D
  $C$ and $V$

Answer: C.

• A
  $Q_{+}>Q_{-}$
• ✓
  $Q_{+}=Q_{-}$
• C
  $Q_{+}$
• D
  The information is not sufficient to decide the relation between $Q_{+}$ and $Q_{-}$

Answer: B.

• A
  Only $A$
• ✓
  Both $A$ and $B$
• C
  Only $C$
• D
  None  of these

Answer: B.

The equivalent capacitance of the combination shown in figure is:

• A
  $C$
• ✓
  $2C$
• C
  $\frac{\text{C}}{2}$
• D
  None of these.

Answer: B.