What is the electric field at a point 2

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Target Exam

CUET

Subject

Physics

Chapter

Electrostatic Potential and Capacitance

Question:

What is the electric field at a point 2 m from electric dipole of very small length?

Options:

4kp/(4-a²)²

kp/4

2kp/(4-a²)²

kp/8

Correct Answer:

kp/4

Explanation:

For a very small dipole length : E = 2kp/r³