An electric charge at rest produces:
Correct answer: B. Only an electric field
- A. Only a magnetic field
- B. Only an electric field
- C. Neither electric field nor magnetic field
- D. Both electric and magnetic field
Explanation
An electric charge at rest produces an electric field around it, which can exert forces on other charges within the field. However, it does not produce a magnetic field unless it is in motion. Therefore, the correct answer is that a stationary electric charge produces only an electric field (Option B). Option A is incorrect because a magnetic field is not generated by a stationary charge. Option C is incorrect because a stationary charge does produce an electric field. Option D is incorrect because both fields are not produced unless the charge is moving.
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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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