To solve the problem below, you must write a clear and convincing justification

Question

To solve the problem below, you must write a clear and convincing justification for accepting one of the possible answer choices as the best or most appropriate and for rejecting each of the other choices as less appropriate. Your reasons for rejecting choices are just as important as your reasons for choosing the best answer. If a positive point charge is released in an electric field, the charge moves in a straight line when: a. the electric field lines are straight. b. it is inside a conductor. c. the voltage difference between any two points is zero. d. the electric field lines are uniformly curved. e. it is inside a uniformly charged conducting shell.

Explanation / Answer

The electric field lines will be straight. If a test charge is placed on some electric field line, it will experience a force along the line. The direction of this force depends on direction of field line and nature of the charge (+ve or -ve). And ofcourse the charge will make movement along the force applied on it. Thus, you can say, in a way, that these lines represent the direction of movement of charge in the influence of given electric field.

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