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Electrostatics question

2007 · Shift 2 · Q15
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  5. /2007 · Shift 2 · Q15

Electrostatics question

2007 · Shift 2 · Q15

JEE AdvancedPhysicsElectrostaticsMCQ+3 / −1
Positive and negative point charges of equal magnitude are kept at (0,0,a2)\left(0,0, \frac{a}{2}\right)(0,0,2a​) and (0,0,−a2)\left(0,0, \frac{-a}{2}\right)(0,0,2−a​), respectively. The work done by the electric field when another positive point charge is moved from (−a,0,0)(-a, 0,0)(−a,0,0) to (0,a,0)(0, a, 0)(0,a,0) is
  1. A
    positive
  2. B
    negative
  3. C
    zero
  4. D
    depends on the path connecting the initial and final positions
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