An insulating sphere of uniform charge + and radius is placed inside an insulating shell of uniform charge − with inner radius and outer radius .

(a) Find the electric field for < .
(b) Find the electric field for < < .
(c) Find the electric field for < < .
(d) Find the electric field for < .
(e) Plot the electric field lines in all regions and ()

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate