Physics · Magnetism and Electrostatics
Which of the following statements is INCORRECT regarding the comparison between the Biot-Savart law for the magnetic field and Coulomb's law for the electrostatic field?
- 1The electrostatic field is along the displacement vector joining the source and the field point, while the magnetic field is perpendicular to the plane containing the displacement vector and the current element.
- 2There is no angle dependence in the Biot-Savart law, which is present in the electrostatic case.✓
- 3The electrostatic field is produced by a scalar source, namely the electric charge, while the magnetic field is produced by a vector source.
- 4Both are long-range fields, since both depend inversely on the square of the distance from the source to the point of interest.
Correct answer
There is no angle dependence in the Biot-Savart law, which is present in the electrostatic case.
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