Two uniformely charged spheres are suspended by strings of length L from vertica
ID: 1407530 • Letter: T
Question
Two uniformely charged spheres are suspended by strings of length L from vertically adjustable supports. The spheres are in static equilibrium and at the same height, as shown below. The angles with respect to the vertical are o 21.30, and T-14, 10. False The charge on W can be positive and that on Z negative. True The charge on W can be negative and that on Z negative True The amount of charge on Z can be greater than that on W. True The mass of Z can be less than that of W False The amount of charge on Z can be equal to that on W Submit Answer Incorrect. Tries 2/12 Previous Tries The tension in the string supporting sphere Z is 2.39E-5 N. Calculate the tension in the other string. 0.0000152 N Submit Answer Incorrect. Tries 1/12 Previous TriesExplanation / Answer
given,
Q = 21.3 degree
T = 14.1 degree
answer to true and false are as follows
False
True
True
False
True
tension in the string supporting Z = 2.39 * 10^-5 N
since electrostatic force on each sphere will be equal so will the horizontal component of the tension
so,
T_z * sin(14.1) = T_l * sin(21.3)
2.39 * 10^-5 * sin(14.1) = T_l * sin(21.3)
T_l = 1.603 * 10^-5 N
tension on the other sring = 1.603 * 10^-5 N
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