GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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electric field lines cannot cross
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electric field lines point away from positive charge
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electric field lines are always straight lines
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electric field lines show how a proton would move in an electric field
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Detailed explanation-1: -Electric field lines never cross each other and point from positive toward negative charge. They do not form closed loops and always start from a positive charge and end on a negative charge. The correct answer is C.
Detailed explanation-2: -Electric field lines cannot be taken as continuous curve.
Detailed explanation-3: -Option(b):’they attract each other’ is false option. Electric field lines are an efficient way of visually showing electric fields.
Detailed explanation-4: -Electric field lines never intersect. In an uniform electric field, the field lines are straight, parallel and uniformly spaced. The electric field lines can never form closed loops, as line can never start and end on the same charge. These field lines always flow from higher potential to lower potential.