I have Q in Phyiscs 2 and i need soluation with steps A velocity selector is a d

Question

I have Q in Phyiscs 2 and i need soluation with steps
A velocity selector is a device used lo obtain a beam of charged particles (ions) moving in a straight line path all with the same velocity (speed). The basic essentials of the device arc as follows: Charged panicles enter the device's opening and encounter mutually perpendicular electric and magnetic fields E and B. Those panicles not deflected by the combined fields continue to travel along in a straight line path and pass through the device's exit opening, all of which arc now traveling at the same velocity. With E pointing vertical and the particle's velocity v as shown Identify and sketch the above described scenario identifying field line and forxti for b and Validate by dynamic force equilibrium the speed v of the particles exiting the opening is given by:

Explanation / Answer

force on charged particle

F=q.(VXB)

V is in positive x direction

magneticfield is in negative z direction

so force will be in y direction

F=qE+q.(VXB)

force equal to 0

qE=-q.(VXB)

E=-(VXB)

electricfield will be in y direction

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