- #1
BrainMan
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Homework Statement
A point charge Q is held at a distance r from the center of a dipole that consists of two charges ±q separated by a distance s. The dipole is initially oriented so that Q is in the plane bisecting the dipole. Assume that r≫s.
A) Immediately after the dipole is released, what is the magnitude of the force on the dipole?
B) Immediately after the dipole is released, what is the magnitude of the torque on the dipole?
Homework Equations
The Attempt at a Solution
[PLAIN]https://lh3.googleusercontent.com/krQ_JEzmRURs4ZqAkRwrapePDCVyz9DBcELyMJ8-tY1g2JYfSLGdkD4lv4_F_2FaaeXrNoN-ZofGqnvD3VNp8AgsogPnk_kYrS2RL9SY5A6K-q9RTfBwq5_Nv_exlvGk5w_Ui0p2kXAdQa1Jw005jR1eRS9G-0lFjnzhD7CfsHB8-pmm0Kxj-BRM_MQbHapBvyIVizorUYPVqCZNcPo1I8I0u83mzPTSJJdylwMoiC2qDsochCphoyNwRT62P_0p_VF0SKk2qpIhhLIdGO9EUow30nxJjp4EvvSKOMZGSaHl-aXsbewtiwn9ky2DmswaV_GOlaW2UFAhDKbytrYhK9GJ-kyP_PLobfQ_jyhIkKldBX29OF8DUKXyodk6Q4n3N5aW1X10msWQ_tzuchKdsmubrePdPNWxTWIHfLr4z9PL4NeXi5BaCm7QSaWWAyAWmRTkJwUx7AE9zwLyqdBmrwSxZIgZlK2z5_LM8rlKqCK3XdixKgaDBS9tOzi4wLe9Gp96Jn7gJpG_m5EwwgaA3LVHTWIWAWFvqzb_FXTW86j-81g_mAdb2Xltz2xyBYoA_Ozaai1Q46fI5-cPOp7f_rezMCPQ5gmLG-jD6g6m-KSyFMMzCkuT=w497-h662-no[/B]
I treated the two charges on the dipole as point charges and then found the force vectors acting on them. Then I broke down the forces into their components and added them. The x components canceled and I was left with just a y component. For some reason this is wrong, though.
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