4.Moving Charges and Magnetism
easy

$m$ દળ અને $Q$ વિદ્યુતભાર અને $K$ ગતિઊર્જા ધરાવતો કણ એકસમાન ચુંબકીયક્ષેત્રમાં લંબરૂપે દાખલ થાય છે.તો $ 3 \,sec $ પછી ગતિઊર્જા......$K$ થાય.

A

$1$

B

$2$

C

$3$

D

$4$

(AIPMT-2008)

Solution

When a charged particle having a given $K.E.$, Tenters in a field of magnetic induction, which is perpendicular to its velocity, it takes a circular trajectory. It does not increase in energy, therefore
$K$ is the $K.E.$ 

Standard 12
Physics

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