A conducting metal ball of radius 0.50 m with charge of 2.0 mu C is surrounded b

Question

A conducting metal ball of radius 0.50 m with charge of 2.0 mu C is surrounded by a concentric spherical metal shell of inner radius 1.5 m and outer radius of 2.0 m with a total charge of - 2.0 mu C. Determine the magnitude of the electric field at a radius of 1.0 m from the center. A 0 B 4.5 times 103 N/C B 9.0 times 10^3 N/C D 1.8 times 10^4 N/C E 4.5 times 10^9 N/C An electrically neutral conductor has a hollow cavity inside of it. within this cavity there is a stationary charge of 10 mu C that does not touch the conductor. There are no other charges the vicinity. which statement about this conductor is true? A The inner surface of the conductor carries a charge of +10 mu C and its outer surface A carries no excess charge. B The inner and outer surfaces of the conductor each contain charges of -5 mu C C The net electric field within of conductor points toward the -10 mu C charge. D The outer surface of the conductor contains -10 mu C of charge and the inner surface contains +10 mu C. E Both surfaces of the conductor carry no excess charge because it is uncharged. A positive charge, if free and initially at rest, will move A from high potential to low potential. B from low potential to high potential. C toward infinity. D away from infinity. E in the direction of the electric field. A positive charge, if free and initially at rest, will move A from high potential to low potential. B from low potential to high potential. C toward infinity. D away from infinity. E in the direction of the electric field. A conducting sphere of radius R carries an excess positive charge and is very far other charges. Which one of the following graphs best illustrates the potential r infinity) produced by this sphere as a function of the distance r from the center of

Explanation / Answer

8.Answer is zero because the net charge inside the shell is zero

10.Moves from higher potential to lower potential.

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