A positively charged particle moving with velocity v enters a region of space having a uniform magnetic field B. The particle will experience the large deflecting force, when the angle between v and B is:

Question

A positively charged particle moving with velocity v enters a region of space having a uniform magnetic field B. The particle will experience the large deflecting force, when the angle between v and B is: (A)  0°  (B)  45°  (C)  90°  (D)  180°

Tardigrade Admin · Accepted Answer

Maximum force is experienced when angle between

v

and

B

is

9 0^{\circ} .

Force experienced by a particle of change

q

,
travelling with velocity

v

in magnetic field

B

is given by

F = q v B sin θ

where

θ

is angle between

v

and

B

∴ F_{m} = q v B sin 9 0^{\circ} = q v B

Q. A positively charged particle moving with velocity $v$ enters a region of space having a uniform magnetic field $B$ . The particle will experience the large deflecting force, when the angle between $v$ and $B$ is:

$0^{\circ}$

$4 5^{\circ}$

$9 0^{\circ}$

$18 0^{\circ}$

Maximum force is experienced when angle between $v$ and $B$ is $9 0^{\circ} .$
Force experienced by a particle of change $q$ ,
travelling with velocity $v$
in magnetic field $B$ is given by
$F = q v B sin θ$
where $θ$ is angle between $v$ and $B$
$∴ F_{m} = q v B sin 9 0^{\circ} = q v B$

Q. A positively charged particle moving with velocity v enters a region of space having a uniform magnetic field B. The particle will experience the large deflecting force, when the angle between v and B is:

0∘

45∘

90∘

180∘