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Concepts Of Physics MCQ Edition [Volume 2]PhysicsElectric Field and Potential

When a point charge is placed within an electric field, the electric field at a nearby point

Options

  1. Amay decrease if the charge is negative
  2. Bwill increase if the charge is positive
  3. Cwill decrease if the charge is negative
  4. Dmay increase if the charge is positive

Correct answer

D. may increase if the charge is positive

Step-by-step solution

Let the initial electric field be E ₀ . When a point charge q is placed in this field, it produces its own electric field E _ q . The net electric field at any nearby point is the vector sum of the initial electric field and the electric field due to the point charge: E _ net = E ₀ + E _ q . If q is positive, E _ q is directed radially outward. At points where E _ q and E ₀ are in the same direction, the magnitude of the net electric field increases. At points where they are in opposite directions, the magnitude de

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