Duration: 11:19

39 views

0

Three charges \( +Q_{1},+Q_{2} \), and \( q \) are placed on a straight line such that \( q \) is somewhere in between \( +Q_{1} \) and \( +Q_{2} \). If this system of charges is in equilibrium, what should be the magnitude and sign of charge \( q \) ?
(1) \( \frac{Q_{1} Q_{2}}{\left(\sqrt{Q_{1}}+\sqrt{Q_{2}}\right)^{2}} \), positive
(2) \( \frac{Q_{1}+Q_{2}}{2} \), positive
(3) \( \frac{Q_{1} Q_{2}}{\left(\sqrt{Q_{1}}+\sqrt{Q_{2}}\right)^{2}} \), negative
(4) \( \frac{Q_{1}+Q_{2}}{2} \), negative
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live