1. A charged cork ball of mass m is suspended on a light string in the presence of a uniform electric field by a rod as shown in Figure. When E= (E/5)(3.0/+4.00) N/C, the ball is in equilibrium at = 45°. Find (a) the electrical field E. (b) the tension by the string, and electrical force on the ball. (c) the distance r. (Gauss's law: JE-dA= Q/Eo) ++++++++++ +q (C/m) E 9
1. A charged cork ball of mass m is suspended on a light string in the presence of a uniform electric field by a rod as shown in Figure. When E= (E/5)(3.0/+4.00) N/C, the ball is in equilibrium at = 45°. Find (a) the electrical field E. (b) the tension by the string, and electrical force on the ball. (c) the distance r. (Gauss's law: JE-dA= Q/Eo) ++++++++++ +q (C/m) E 9
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charged cork ball of massmis suspended on a light string in the presence of a uniform electric field by a rod as shown in Figure. WhenE=(E/5)(3.0i+4.0j)N/C, the ball is in equilibrium atθ=45∘. Find (a) the electrical fieldE. (b) the tension by the string, and electrical force on the ball. (c) the distancer. (Gauss's law:∫E⋅dA=Q/ε0)
Transcribed Image Text:1. A charged cork ball of mass m is suspended on a light string in the presence of a uniform
electric field by a rod as shown in Figure. When E = (E/5)(3.0i+4.0) N/C, the ball is in
equilibrium at 0= 45°. Find (a) the electrical field E. (b) the tension by the string, and
electrical force on the ball. (c) the distance r. (Gauss's law: JE-dA = Q/Eo)
y
1
++++++++++
+q (C/m)
+
9
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