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According to Coulomb’s Law, a charge Q sitting at the origin will exert a force kQq/r2...

According to Coulomb’s Law, a charge Q sitting at the origin will exert a force kQq/r2 on a point charge q located at r, with the force along the r direction.  The electric field E at r due to Q is equal to the force experienced by a unit charge (i.e., q = 1 unit) at r.  Based on these two pieces of information, one can conclude that the magnitude of E at r is

Question 1 options:

1)

kq/r2.

2)

kQ/r.

3)

kQ/r2.

4)

kQ/r3.
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Answer #1

Answer)

Option 2) Electric field, E= kQ/r

Since, q=1 unit

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