While deriving the formula for electric field due to an infinitely long wire of uniform charge density using Gauss's law we assume that this field has cylindrical symmetry and there is no component of field along the axis.But how do we know that the field has cylindrical symmetry and there is no component of field along the axis.Why can't there be an axial component of field and what happens if we have a wire of finite length? How does the situation differ from the earlier case?
Subscribe to:
Post Comments (Atom)
classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?
I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...
-
I have performed experiments in my college laboratory on Newton's rings to find radius the of curvature of the convex lens used. I alway...
-
I was solving the sample problems for my school's IQ society and there are some I don't get. Since all I get is a final score, I wan...
-
500 are at my end, 500 are at my start, but at my heart there are only 5. The first letter and the first number make me complete: Some consi...
No comments:
Post a Comment