Hunter Shah

2022-10-20

The motion of a charged particles under the action of a magnetic field alone is always motionA. Constant speedB. Constant velocityC. Constant forceD. Constant Acceleration

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honejata1

Expert

Magnetic field:
The magnetic field is the region around the magnetic material within which the force of magnetism acts. the formula to calculate magnetic field is :
$B=\frac{{u}_{0}I}{2\pi r}$
Acceleration is towards center, so it will always change.
Here the Lorentz force is used, from which we can find the variation of the velocity and acceleration of the particle moving in the motion
hence, the motion of the charged particle under the action of a magnetic field alone is always motion in constant speed.
$F=q\left(v×B\right)$
A) Constant speed

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