Use gauss' law and symmetry to find the electrostatic field as a function of position for an infinite uniform line of charge. let the charge lie along the z-axis and denote the charge per unit length by a (b) repeat part (a) for an infinite cylinder of charge whose axis coincides with the z-axis and whose density is given in cylin- drical coordinates by p(r) = 10. pab. por r

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?