List of top Physics Questions on Magnetic Field asked in VITEEE

A circular coil of radius \(R\) carries a current \(I\). The magnetic field at its centre is \(B\). At what distance from the centre on the axis of the coil will the magnetic field be \(B/8\)?
A proton \((q = 1.6 \times 10^{-19}\,C)\) enters a magnetic field of \(2\,T\) with a velocity of \(3 \times 10^6\,\text{m/s}\) perpendicular to the field. Find the magnetic force acting on the proton.
A charged particle moves in a magnetic field \(B\) with velocity components both along and perpendicular to \(B\). What is its path?
What happens to the magnetic field at the center of a circular coil if the number of turns is doubled while current remains constant?
What happens to the magnetic field at the center of a circular coil if the number of turns is doubled while keeping the current constant?
A charged particle moves in a magnetic field \(B\) with velocity components both along and perpendicular to \(B\). What is its path?
In a Rutherford scattering experiment, when a projectile of charge \( Z_1 \) and mass \( M_1 \) approaches a target nucleus of charge \( Z_2 \) and mass \( M_2 \), the distance of closest approach is \( r_0 \). The energy of the projectile is:
If \( m \) is magnetic moment and \( B \) is the magnetic field, then the torque is given by:
A planet in a distant solar system is 10 times more massive than Earth and its radius is 10 times smaller. Given that the escape velocity from Earth's surface is 11 km/s, the escape velocity from the planet’s surface would be:
A current \( I \) flows along the length of an infinitely long, straight, thin-walled pipe. Then:
When you walk through a metal detector carrying a metal object in your pocket, it raises an alarm. This phenomenon works on:
The magnetic moment of an electron (e) revolving in an orbit around nucleus with an orbital angular momentum is given by:
The work done by an uniform magnetic field, on a moving charge is
The magnetic field at a distance r from a long wire carrying current i is 0.4 tesla. The magnetic field at a distance 2r is
The magnetic field at a point due to a current carrying conductor is directly proportional to
Two solenoids are given - 1st has 1 turn per unit length and 2nd has n turns per unit length. Ratio of magnetic fields at their centres is
In a potentiometer experiment, the balancing length of a cell is $560\, cm$. When an external resistance of $10 \, \Omega$ is connected in parallel to the cell, the balancing length changes by $60 \,cm$.The internal resistance of a cell is
Two sources of equal emf are connected to a resistance $R$. The internal resistance of these sources are $r_1$ and $r_2 (r_1 > r_2 )$. If the potential difference across the source having internal resistance $r_2$ is zero, then
A proton of mass $ 1.67 \times 10^{-27}\, kg$ enters a uniform magnetic field $1\, T$ of at point A shown in figure with a speed of $10^7\, ms^{-1}$ The magnetic field is directed normal to the plane of paper downwards. The proton emerges out of the magnetic field at point $C$, then the distance $AC$ and the value of angle $\theta $ will respectively be
In the hydrogen atom, the electron is making $6.6 \times 10^{15}$ rps. If the radius of orbit is $0.53 \times 10^{-10}$ m, then magnetic field produced at the centre of the orbit is
A proton with energy of 2 MeV enters a uniform magnetic field of2.5 T normally. The magnetic force on the proton is (Take mass of proton to be $1.6 \times 10^{-27} kg )$
A proton enters a magnetic field parallel to the direction of the field. Then, the path followed by it is