Question

Find the direction of the magnetic field acting on a positively charged particle moving in the situation shown in Figure B out of the page o toward the right o into the page o toward the bottom of the page O أخرى

Answer 1

The direction of the magnetic field would be into the page, which can be found using Fleming's right-hand rule. To see how, see the following explanation.

The force on as a charged particle, in a magnetic field given by the Losentz force law is F = q J x B Now, the figure given is found out The direction of the magnetic field, can be using the Fleming's right hand rule, wherein if you hold out your right hand with the Endex finger, middle finger and the thumb at right angle to each other, then the a positively charged particle's case, the thumb points along the direction of the Lorentz force, the index for ATE finger along the direction of the velocity of the partice, & then correspondingly the middle finger points along the magnetic field. So, according to this rule, the magnetic field in this case points into the page.

So, the figure can be completed as This can also be veritied using the right hand rule for the cross product where if you hold out your thumb berpendicular to your palm and then Curd your finger Ru the direction of rotation (here, from a to B²), thus making a thumbs up in the end, your thumb will point in the direction of the cross product (ie, vxB), which is the direction of the Lorentz force (here), thus con firming the direction into the page. of B,