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TS EAMCET · Physics · Electrostatics

The work done to assemble the three charges in a configuration as shown in the figure below is

  1. A -3q24πε0a
  2. B -2q24πε0a
  3. C -q24πε0a
  4. D 0
Verified Solution

Answer & Solution

Correct Answer

(C) -q24πε0a

Step-by-step Solution

Detailed explanation

Let q1=-q, q2=q, q3=-2q, r.12=r23=r13=a Work done W=14πε0q1q2r12+q2q3r23+q1q3r13 =-q2-2q2+2q2a14πε0=-q24πε0a