Which of the following statement is correct regarding the Coulomb’s force and Biot-Savart’s force?
Options:
(a) Electrostatic force is along the displacement vector joining the source and the field but magnetic force is perpendicular to the plane containing the displacement vector and source.
(b) There is an angle dependence in the Biot-Savart's law, which is present in Coulomb's law.
(c) Biot-Savart's law can be expressed in vector form but Coulomb's law cannot be expressed in vector form.
(d) Biot-Savart's law is applicable in all medium but Coulomb's law is applicable only in medium which can be polarised.