A. It is the strongest force possible.
Explanation:
The force exerted on a charged particle moving in a region with a magnetic field is given by the following equation:
[tex]F=qvB sin \theta[/tex]
where
q is the magnitude of the charge
v is the velocity of the particle
B is the strength of the magnetic field
[tex]\theta[/tex] is the angle between the direction of the velocity and of the field
From the equation, we notice that:
- The force is maximum when the particle is moving perpendicular to the magnetic field, therefore when [tex]\theta=90^{\circ}[/tex] and [tex]sin \theta=1[/tex]
- The force is zero when the particle is moving parallel (or anti-parallel) to the magnetic field, therefore when [tex]\theta=0[/tex] and [tex]sin \theta = 0[/tex]
Based on these observation, we can immediately conclude that the only correct option among the given choices is
A. It is the strongest force possible.
Learn more about magnetic fields:
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