A point electric dipole is at the origin of coordinates with its dipole moment along the positive Z-axis. Consider a circular disc of radius R with its centre at z = L and its plane perpendicular to the Z-axis. The modulus of the electric flux due to the dipole through the disc is maximum when R is equal to then write value of n
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An electric dipole's field along its axis is strongest. The flux through the disc is maximum when the disc's radius is such that its edge lies at the point where the radial component of the electric field is zero, maximizing the normal field through the surface. For a dipole on the z-axis, the electric field component normal to the disc (Ez) varies with distance.
The condition for maximum flux occurs when the disc's radius R makes a specific angle. The analysis shows this happens when R = . Therefore, comparing to the given form , the value of n is 2.
Final Answer: n = 2