Using coulomb's law compute the electric field at p, a distance z above the center of a circular loop of radius r that carries a uniform line charge of density λ (see adja- cent figure). draw a diagram to explain how you arrived at the result. 2. find the electricotential a due to the same circular loop as in the previous problem. compute the gradient of the potential and verify that it is consistent with the field you found previously. hint: you may assume that the potential is zero at infinity and use the expression for potential due to an elemetal length along the loop and integrate.