Electromagnetic Field Theory
A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere

 QR/(4π εo r3).
 Q/(4 π εo r3).
 Qr/(4 π εo R3).
 3 Qr/(4 π εo R3).

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Electromagnetic Field Theory
Two spheres of radius r1 and r2 are connected by a conducting wire. Each of the spheres has been given a charge Q. Now

 larger sphere will have greater potential.
 smaller sphere will have zero potential.
 both of sphere will have same potential.
 larger sphere will have smalled potential.

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