AAI ATC Junior Executive 25 Mar 2021 Shift 3 Paper

Question : 109 of 120

Marks: +1, -0

Which of the following statement is INCORRECT regarding the comparison between biot-savart law for the magnetic field and coulomb's law for the electrostatic field?

Both are long range, since both depend inversely on the square of distance from the source to the point of interest.
The electrostatic field is produced by a scalar source, namely, the electric charge. The magnetic field is produced by a vector source.
There is no angle dependence in biot-savart law which is present in the electrostatic case. The magnetic field at any point is zero.
The electrostatic field is along displacement vector joining the source and the field point. The magnetic field is perpendicular to the plane containing the displacement to the plane containing the displacement vector and current element.

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