List of top Physics Questions on Magnetic Force asked in MET

A particle of charge \( q \) and mass \( m \) is moving with a velocity \( -2v \hat{i} \) (\( v \neq 0 \)) towards a large screen placed in YZ-plane placed at a distance \( d \). If there is a magnetic field \( \vec{B} = B_0 \hat{k} \), the maximum value of \( v \) for which the particle will not strike the screen is

A copper wire of diameter 1.6 mm carries a current I. The maximum magnetic field due to this wire is \(5 \times 10^{-4} \, T\). The value of I is :

The force per unit length between two parallel current carrying straight conductors separated by \(2d\) is given by the formula:

Which of the following is unipolar transistor?

\(n\) small balls, each of mass \(m\) impinge elastically each second on a surface with a velocity \(u\), then the force experienced by the surface in one second, will be

A car is moving along a straight horizontal road with a speed \(v_0\). If the coefficient of friction between the tyres and the road is \(\mu\), the shortest distance in which the car can be stopped is

A charged particle enters a magnetic field \( H \) with its initial velocity making an angle of \( 45^\circ \) with \( H \). The path of the particle will be:

An electron moving with velocity \( 2 \times 10^{-7} \, \text{m/s} \), describes a circle in a magnetic field of strength \( 2 \times 10^{-2} \, \text{T} \). If \( \frac{e}{m} \) of the electron is \( 1.76 \times 10^{11} \, \text{C/kg} \), then the diameter of the circle will be:

Two parallel conductors A and B of equal length carry currents i and 10 i, respectively, in the same direction. Then

The magnetic moment of a transition metal ion is \( \sqrt{15} \,\text{BM} \). Therefore, the number of unpaired electrons present in it is

The magnetic field at the center of a circular current-carrying loop of radius $R$ is $B$. The field at a point on the axis at a distance $R$ from the center is: