List of top Physics Questions on Biot-Savart Law asked in CUET (UG)

Assertion-Reason Type Question Assertion (A): The magnetic field at the center of a circular current carrying loop is directly proportional to the current flowing through it.
Reason (R): According to Biot–Savart’s law, magnetic field produced by a current element is proportional to the current element. Choose the correct answer from the options given below:

The nucleus of helium atom contains two protons that are separated by a distance 3.0 $\times$ 10⁻¹⁵ m. The magnitude of the electrostatic force that each proton exerts on the other is

The magnetic induction at the centre $O$ in the figure shown is

A long wire with a small current element of length 1 cm is placed at the origin and carries a current of 10 A along the x-axis. The magnitude of the magnetic field, due to the element, on the y-axis at a distance 0.5 m from it, would be