Question

A point electric is dipole is at the origin of coordinate with its dipole moment along the positive Z-axis. Consider a circular disc of radius R with its center z= modulus of the electric flux due to the dipole through the disc is maximum R is equal to

• A. Infinity
• B. $\sqrt{2}L$
• C. L
• D. $L\sqrt{2}$

Answer 1

The correct option is C L

radius $=R$

$Z=$ modulus of the electric flux due to the dipole through the disc is maximum $R$

Now, maximum $R=L$

In general total $=2L$

maximum $=L$

and minimum $=\frac{L}{2}$