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Byju's Answer
Standard XII
Physics
Magnetic Field
A charged par...
Question
A charged particle is moving in a magnetic field, match the different quantities of a particle in entries of column I with the entries of column II.
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Solution
Work done by magnetic force is zero. From work-energy theorem, its speed or kinetic-energy is constant.
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Similar questions
Q.
A charged particle with some initial velocity is projected in a region where non-zero electric and/or magnetic fields are present. In column I, information about the existence of electric and/or magnetic field and direction of initial velocity of charged particle are given, while in Column II the probable path of the charged particle is mentioned. Match the entries of Column I with the entries of Column II
Q.
A charged particle with some initial velocity is projected in a region where non-zero electric and/or magnetic fields are present. In column I, information about the existence of electric and/or magnetic field and direction of initial velocity of charged particle are given; while in Column II, the probable path of the charged particle is mentioned. Match the entries of Column I with the entries of Column II.
Colum I
Colum II
i.
→
E
=
0
,
→
B
≠
0
and initial velocity may
a.
Straight line
be at any angle with
→
B
.
ii.
→
E
=
0
,
→
B
=
0
and initial velocity may
b.
Parabola
be at any angle with
→
E
.
iii
→
E
≠
0
,
→
B
≠
0
,
→
E
|
|
→
B
and initial velocity is
c.
Circular
⊥
to both.
d.
Helical path
Q.
The velocity-time graph of a particle moving along X-axis is shown in figure. Match the entries of Column I with entries of Column II.
Q.
A charged particle with some initial velocity is projected in a region where non-zero electric and/or magnetic fields are present. In column I, information about the existence of electric and/or magnetic field and direction of initial velocity of charged particle are given; while in Column II, the probable path of the charged particle is mentioned. Match the entries of Column I with the entries of Column II.
Colum I
Colum II
i.
→
E
=
0
,
→
B
≠
0
and initial velocity may
a.
Straight line
be at any angle with
→
B
.
ii.
→
E
=
0
,
→
B
=
0
and initial velocity may
b.
Parabola
be at any angle with
→
E
.
iii
→
E
≠
0
,
→
B
≠
0
,
→
E
|
|
→
B
and initial velocity is
c.
Circular
⊥
to both.
d.
Helical path
Q.
Column I
Column II
I.
The practical A is
a.
accelerating
II.
The particle B is
b.
decelerating
III.
The particle C is
c.
speeding up
IV.
The particle D is
d.
slowing down
Figure shows the position-time graph of particle moving along a straight line. Match the entries of Column I with the entries of Column II.
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