Charges of +2 μC and -2 μC are situated at points P and Q respectively, as shown below. X is midway between P and Q. Which of the following correctly describes the electric field and the electric potential at point X?
Correct answer: A. Option A
- A. Option A
- B. Option B
- C. Option C
- D. Option D
- E. Option E
Explanation
As the electric field moves away from positive charges and towards negative charges, the direction of the electric field should be towards Q. Electric potential is a scalar quantity that means it should be added without considering the directions. At pSince the charges are equal and opposite with the same distance from point X, the potential at point X will be zero.
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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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