Question

Figure below show regular hexagons, with charges at the vertices. In which of the following case the electric field at the centre is not zero-

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

The capacitance of a parallel plate capacitor is 2mF and the charge on its positive plate is 2mC. If the charge on its plates are doubled, the capacitance of the capacitor (Battery connected)