Electrostatic fields are known as what?

Electrostatic fields are known as what?

• A. Electrostatic fields
• B. Dynamic electric fields
• C. Magnetic fields
• D. AC fields

Answer: (A)

Electric fields produced by stationary charges are called electrostatic fields. Because the charges aren’t moving, the field doesn’t change with time, making it a static electric field. This field is conservative and curl-free (∇ × E = 0), so a potential exists and E = -∇V. It follows Coulomb’s law for individual charges and Gauss’s law for charge distributions. If charges start to move or currents vary, the field becomes dynamic and is accompanied by a changing magnetic field, forming electromagnetic waves. The other descriptions refer to time-varying or magnetic phenomena, not the static electric field from fixed charges.

Electric fields produced by stationary charges are called electrostatic fields. Because the charges aren’t moving, the field doesn’t change with time, making it a static electric field. This field is conservative and curl-free (∇ × E = 0), so a potential exists and E = -∇V. It follows Coulomb’s law for individual charges and Gauss’s law for charge distributions. If charges start to move or currents vary, the field becomes dynamic and is accompanied by a changing magnetic field, forming electromagnetic waves. The other descriptions refer to time-varying or magnetic phenomena, not the static electric field from fixed charges.