What is the field on axial line of an el

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Target Exam

CUET

Subject

Physics

Chapter

Electrostatic Potential and Capacitance

Question:

What is the field on axial line of an electric dipole?

Options:

4kpr/(r²-a²)²

4kpr/(r²-a²)

2kpr/(r²-a²)²

2kpr/(r²-a²)

Correct Answer:

2kpr/(r²-a²)²

Explanation:

The expression for electric field at a point on axial line of a dipole : E = 2kpr/(r²-a²)²