Physics-
General
Easy
Question
Two charges are placed near the origin: charge q1 = +3Q is placed at x = +d/ 2, and charge q2= –Q is placed at x = –d/2. Which of the following statement(s) is/are a valid description of the electric field arising from the two charges?
- The field very close to the origin
is approximately zero
- The field very close to q2 is approximately the field due a single point charge –Q, located at x =–d/ 2
- For every three field lines originating on q1 , there will be one field line ending on q2 , and two field lines going off to infinite distances from the origin
- The field at very large distances from the origin
is approximately the field of a single point charge +2Q.
is approximately zero
is approximately the field of a single point charge +2Q.
The correct answer is: The field at very large distances from the origin is approximately the field of a single point charge +2Q.
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