Four point charges −Q, −q, 2q and 2Q are placed, one at each corner of the square. The relation between Q and q for which the potential at the centre of the square is zero is ?
Answers
Answered by
1
Answer:
Let the side of the square be =a
Potential at centre
V
c
=
2
a
K×−Q
+
2
a
K×−q
+
2
a
K×2q
+
2
a
K×2Q
0=
2
a
KQ
+
2
a
Kq
⇒Q=−q
Explanation:
Similar questions