Question

What is the magnetic force experienced by a negatively charged particle of 1.0 C that is moving upward at a velocity of 2.0 103 m/s in a magnetic field of strength 4.0 10–4 T, directed into the page? (A) 0.8 N to the left (B) 0.8 N to the right (C) 2.0 10–7 N to the left (D) 2.0 10–7 N to the right (E) 5.0 106 N to the left ​​ What is the magnetic force experienced by a negatively charged particle of 1.0 C that is moving upward at a velocity of 2.0 103 m/s in a magnetic field of strength 4.0 10–4 T, directed into the page? (A) 0.8 N to the left
(B) 0.8 N to the right (C) 2.0 10–7 N to the left (D) 2.0 10–7 N to the right (E) 5.0 106 N to the left

Answer 1

Dear Student ,
Here in this case the force is ,

$$\begin{gathered} F=qvB=1\times 2\times 1000\times 4\times {10}^{-4}=0.8N \\ asthemagneticfieldisdirectedintothepageandthechargeismovingupwardssothe \\ forcewillbeintheleft. \end{gathered}$$
Regards