Electromagnetic Field Theory
A satellite that simply reflect back the signals from one region of the earth to the other region is known as

Orbiting satellite
Passive satellite
Active satellite
Geostationary satellite

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

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