In the figure given below, two positive charges \(q_2\) and \(q_3\) fixed along the \(y\)-axis, exert a net electric force in the \(+x\text-\)direction on a charge \(q_1\) fixed along the \(x\)-axis. If a positive charge \(Q\) is added at \((x, 0),\) the force on \(q_1\):
| 1. | shall increase along the positive \(x\)-axis. |
| 2. | shall decrease along the positive \(x\)-axis. |
| 3. | shall point along the negative \(x\)-axis. |
| 4. | shall increase but the direction changes because of the intersection of \(Q\) with \(q_2\) and \(q_3\). |
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