In figure two positive charges q2 and q3 fixed along the y-axis, exert a net electric force in the + x-direction on a charge q1 fixed along the x-axis. If a positive charge Q is added at (x, 0), the force on q1
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 q2 and q3
Answer:A
In figure two positive charges q2 and q3 fixed along the y-axis, exert a net electric force in the + x-direction on a charge q1 fixed along the x-axis. If a positive charge Q is added at (x, 0), the force on q1
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 q2 and q3