Question

In a cyclotron , a charged particle (a) undergo acceleration all the time(b) speeds up in the dee (c) speeds up due to magnetic field(d) all the above

Answer 1

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In a cyclotron , a charged particle

(a) undergoes acceleration all the time

(b) speeds up in the dee

(c) speeds up between the dees because of the magnetic field.

(d) slows down within a dee and speeds up between dees.

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➦  $\sf{\green{ \bold(a) undergoes\: acceleration \:all \:the \:time.}}$

$\pink{➯}$The electric field and magnetic field are perpendicular to each other. When a  charge is placed between dees in empty space then it experiences a force due to the electric field and the magnetic field keeps it into a circular path.

$\blue{➯}$ Inside dees, there is no electric field due to the shielding effect of charge or field only magnetic keeps the circular motion of charged particle inside. So inside dees charge moves with constant velocity. or In a cyclotron, a charged particle describes the circular paths inside the dees and is accelerated while going from one dee to another due to electric field. During circular path, the charged particle has centripetal acceleration which is provided by the magnetic force due to magnetic field. Therefore, a charged particle undergoes acceleration all the time, inside the cyclotron.

Answer 2

QuestioN...

In a cyclotron, a charged particle (a) undergoes acceleration all the time. (b) speeds up between the dees because of the magnetic field (c) speeds up in a dee (d) slows down within a dee and speeds up between dees.

Answer: (a)

Therefore, a charged particle undergoes acceleration all the time, inside the cyclotron.