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KCET2026PhysicsElectrostatics

A 200 J of work is done in moving a charge 5 C from a point A where the potential is -20 V to another point B where potential is V volt. The value of V at B is

Options

  1. A10 V
  2. B20 V
  3. C40 V
  4. D60 V

Correct answer

B. 20 V

Step-by-step solution

The work done in moving a charge q from point A to point B is given by W = q(V_B - V_A) . Substituting the given values: 200 = 5(V - (-20)) 200 = 5(V + 20) V + 20 = 40 V = 20 V Answer: 20 V

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