A short electric dipole has dipole moment 16×10⁻⁹ C·m. Find the ele...

Question

A short electric dipole has dipole moment 16×10⁻⁹ C·m. Find the electric potential at a point 0.6 m from centre, on a line making 60° with the dipole axis.

Accepted Answer

Given:

Dipole moment, p = 16 × 10⁻⁹ C·m
- Distance, r = 0.6 m
- Angle, θ = 60°

Formula:

V = kp cosθ / r²

Calculation:

V = (9 × 10⁹ × 16 × 10⁻⁹ × cos 60°) / (0.6)²

V = (9 × 10⁹ × 16 × 10⁻⁹ × 0.5) / 0.36

V = (9 × 16 × 0.5) / 0.36

V = 72 / 0.36

V = <b>200 V</b>

∴ <b>Electric potential at the given point = 200 V</b>

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