Magnetic field

Statement-1 Magnetic field inside an ideal solonoid is uniform Statement-2 Magnetic field outside an ideal solonoid is zero Statement-3 Magnetic field at centre of an ideal solonoid is twice the magnetic field at the ends

An electron beam produces i) Electrical field around the beam ii) Magnetic field around the beam iii) Electrical field is more stronger than the magnetic field iv) Electrical and magnetic fields are not produced

A charge particle of charge 'q' and mass 'm' enters in a given magnetic field 'B' and perpendicular to the magnetic field as shown in the figure. It enters at an angle of 60^(@) with the boundary surface of magnetic field and comes out at an angle of 30^(@) with the boundary surface of the magnetic field as shown in the figure. Find width 'd' in which magnetic field exist.

A paramagnetic material is placed in a magnetic field. Consider the following statements : (A) If the magnetic field is increased, the magnetization is increased. (B) If the temperature is increased, the increased the magnetization is increased.

(A) : If an electron is not deflected while passing through a certain region of space, then only possibility is that there is no magnetic field in this region (R) : Force on an electron moving in a magnetic field is inversely proportional to the magnetic field applied.

Consider the uniform magnetic field shown: Starting from point P and without leaving the region of magnetic field, is it possible to choose a closed path (that is, a path that returns to P) for which the line integral of the magnetic field is nonzero?

Statement 1: A magnetic field independent of time can change the velocity of a charged particle. Statement 2: It is not possible to change the velocity of a particle in a magnetic field as magnetic field does no work on the charged particle.

Assertion : Earth's magnetic field does not affect the working of a moving coil galvanometer. Reason: The earth's magnetic field is quite weak as compared to magnetic field produced in the moving coil galvanometer.

A proton of mass m and charge q enters a region of uniform magnetic field of a magnitude B with a velocity v directed perpendicular to the magnetic field. It moves in a circular path and leaves the magnetic field after completing a quarter of a circle. The time spent by the proton inside the magnetic field is proportional to:

In which of the following situations, the magnetic field can accelerate a charge particle at rest? I. When the magnetic field is uniform with respect to time as well as position II. When the magnetic field is time varying but uniform w.r.t. position III. When the magnetic field is time independent but position dependent