Question

The potential difference between point A & B is [BHU 2003; CPMT 2004; MP PMT 2005]
A) \frac{20}{7}\,\,V B) \frac{40}{7}\,\,V C) \frac{10}{7}\,\,V D) 0

Answer 1

B)grav{40}{7}\,\,V ....