Questions
Three point charges of equal value q are placed at the vertices of al equilateral triangle. The resulting lines of force should be sketch as in
detailed solution
Correct option is B
When Q is at position x, thenU=qQ4πε01(a+x)+1(a−x) =2aqQ4πε0a2−x2∴ dUdx=2aqQ4πε02xa2−x22=2aqQ4πε0×2xa4∵a2−x2=a2 when x is small or dU∝xdx or U∝x2.Talk to our academic expert!
Similar Questions
A parallel plate capacitor has plate area A and separation d. It is charged to a potential difference Vo. The charging battery is disconnected and the plates are pulled apart to three times the initial separation. The work required to separate the plate is
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