Which diagram represent the electric fields of a negative point charge, shown by.
Correct answer: B. B
- A. A
- B. B
- C. C
- D. D
Explanation
The correct representation of electric field lines for a negative point charge is diagram B, where the lines are directed inwards towards the charge. This is because electric field lines always point towards negative charges and away from positive charges. Diagrams C and D are incorrect because they do not show straight lines, which are a characteristic of point charges. Diagram A is incorrect as it shows lines emanating outward, which would be true for positive charges, not negative ones.
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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