List of top Physics Questions on Magnetic Force asked in KCET

In a conducting region, \(10^{19}\) electrons and \(10^{19}\) protons move to the left, while \(10^{19}\) \(\alpha\)-particles move to the right per second. The resulting electric current is \(\underline{\hspace{3cm}}\). 

(Given: \(e = 1.6 \times 10^{-19} \, \text{C}\))

Two thin long parallel wires separated by a distance \( r \) from each other in vacuum carry a current of 1 ampere in opposite directions. Then, they will
Two parallel wires in free space are 10 cm apart and each carries a current of 10A in the same direction. The force exerted by one wire on the other [per unit length] is
A coil of area $5 \, cm^2$ having $20$ turns is placed in a uniform magnetic field of $10^3$ gauss. The normal to the plane of coil makes an angle $30^{\circ}$ with the magnetic field. The flux through the coil is
The magnetic Lorentz force experienced by a charge q, entering a magnetic field B with a velocity v is