Start Free Mock LoginAlready registered? Login here

Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic ForceEasy2 minPYQ_2020

PhysicsEasysingle choice

A charge $q$ is accelerated through a potential difference $V.$ It is then passed normally through a uniform magnetic field, where it moves in a circle of radius $r .$ The potential difference required to move it in a circle of radius $2 r$ is

Options:

Answer:

Solution:

$r = \frac{m v}{q B} = \frac{\sqrt{2 m . K E}}{q B}$
$= \frac{\sqrt{2 m q V}}{q B}$
$2 r = \frac{\sqrt{2 m q . {V}^{'}}}{q B}$
$\Rightarrow {V}^{'} = 4 V$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic Force

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...