When a positive point charge is placed in the electric field of another point charge, how can the field decrease?
Asked by Shanthiswaroop Srinivas
26th April 2018,
6:13 AM
Answered by Expert
Answer:
By physics, it can be explained that two charges of same sign repel each other. Due to this repulsion field lines are also repelled. Hence in the region near the line connecting these two charges of same sign, intensity of field reduces and in some region it can be zero.
Mathematically it can be explained as given below
As given in fig.(a) at point P, we have electric field due to point charge +Q placed at a distance r from P. Now as shown in figure if we have similar point charge +Q on the other side of P, field due to both charges cancel each other giving null field
Answered by Expert
27th April 2018,
11:38 AM
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