00:01
Here it is given that a steady magnetic field exerts a force on a moving charge.
00:08
We know that force on a moving charge exerted on a moving charge by a magnetic field is given by the expression f equals q into b cross b.
00:20
Here f is the magnetic force, q is the charge of the particle, v is the velocity of the particle and b is the magnetic field.
00:29
Here, from this expression, we can see that the magnetic force is perpendicular to both the velocity of the particle and the magnetic field.
00:42
So, therefore, the force, the magnetic force is directed at right angles, right angles to the direction of the motion.
00:56
Right angles to the direction of the motion.
00:59
Hence, the correct option is option c, which.
01:03
It states that the force is directed at right angles to the direction of the motion...