What is the expression for r₁² in terms of r, a, and θ for a dipole? - ELECTROSTATICS Quiz | GKFix.in

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Question

What is the expression for r₁² in terms of r, a, and θ for a dipole?

A. r² + a² + 2ar cosθ
B. r² + a² - 2ar sinθ
C. r² + a² - 2ar cosθ
D. r² - a² - 2ar cosθ