Lines of force

I. Begin and end on equal and opposite electric charges.
II. are in state of tension which causes them to shorten
III. attract one another.

Which of the statement(s) is/are correct?

Khadijahbintkhuwalid

1 year ago

A. I only

Here's why:
Statement I: "Begin and end on equal and opposite electric charges."
This is correct. Electric field lines always begin on positive charges and end on negative charges (or extend to infinity if there is only one charge). This is a fundamental property of electric field lines.

Statement II: "Are in a state of tension which causes them to shorten."
This is incorrect. Electric field lines are not "tensed" in the physical sense like rubber bands. They simply represent the direction of the force that a positive test charge would experience in an electric field. They don’t physically shorten or stretch.

Statement III: "Attract one another."
This is incorrect. Electric field lines do not "attract" each other. They are simply representations of the electric field, and while they never cross, they do not exhibit a force that causes them to attract one another.

Conclusion:
Only Statement I is correct, so the correct answer is A. I only.

s.samuel

1 year ago

Explanation anybody

Nerd_Mike

1 year ago

This answer is highly incorrect as electric lines of force begin on positive charge and ends on negative charge but not equal and opposite charges. The charge may only differ in magnitude.
So the right answer to this question should have been option I only.