| In given figure, two positive charges \[{{q}_{2}}\] and \[{{q}_{3}}\] fixed along the y axis, exert a net electric force in the + x direction on a charge \[{{q}_{1}}\] fixed along the x axis. If a positive charge Q is added at (x, 0), the force on \[{{q}_{1}}\] |
 |
A) shall increase along the positive x-axis.
B) shall decrease along the positive x-axis.
C) shall point along the negative x-axis.
D) shall increase but the direction changes because of the intersection of Q with \[{{q}_{2}}\] and \[{{q}_{3}}\].
Correct Answer: A
Solution :
Option [a] is correct Explanation: Net force on charge \[{{q}_{1}}\], by other charges \[{{q}_{2}}\] and \[{{q}_{3}}\] is along the + x-direction, so nature of force between \[{{q}_{1}}\] and \[{{q}_{2}}\] and \[{{q}_{1}}\] and \[{{q}_{3}}\] is attractive. This is possible when charge\[{{q}_{1}}\] is negative. Now, if a positive charge Q is placed at (x, 0), then, the force on \[{{q}_{1}}\] will increase. The direction will be along positive x-axis.
You need to login to perform this action.
You will be redirected in
3 sec
