Solution : Electrostatic field created by a hemisphere surface charge - Corrected electromagnetism exercises
Electrostatic field created by a hemisphere surface charge.
The z axis is the axis of symmetry of load distribution. The field M is carried by this axis.
Consider a semi-sphere surface element centered at a point P.
Elemental electrostatic field created by this element at the point M of the axis Oz is expressed as:
Only the projection of this vector onto axis Oz contributes to the field at point M: