Physics · Electrostatic Potential

A capacitor of capacitance \( C_1 = 4\, \mu\text{F} \) is charged to \( 50\text{ V} \) and another capacitor \( C_2 = 6\, \mu\text{F} \) is charged to \( 100\text{ V} \). If they are connected together in parallel with plates of like polarity connected together, the final common potential difference across the combination is:

1. A
   \( 60\text{ V} \)
2. B
   \( 80\text{ V} \)
3. C
   \( 70\text{ V} \)
4. D
   \( 75\text{ V} \)