A rod (length = 2.0 m) is uniformly charged and has a total charge of 40 nC.What is the magnitude of the electric field at a point which lies along the axis of the rod and is 3.0 m from the centre of the rod?
A)40 N/C
B)45 N/C
C)24 N/C
D)90 N/C
E)36 N/C

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The Answer of A rod (length = 2.0 m) is uniformly charged and has a total charge of 40 nC.What is the magnitude of the electric field at a point which lies along the axis of the rod and is 3.0 m from the centre of the rod?
A)40 N/C
B)45 N/C
C)24 N/C
D)90 N/C
E)36 N/C

A Rod (Length = 2