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CBSE
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MCQ Questions for CBSE Class 12 with Answers
MCQ Questions for CBSE Class 11 with Answers
MCQ Questions for CBSE Class 10 with Answers
MCQ Questions for CBSE Class 9 with Answers
MCQ Questions for CBSE Class 8 with Answers
MCQ Questions for CBSE Class 7 with Answers
MCQ Questions for CBSE Class 6 with Answers
MCQ Questions for CBSE Class 5 with Answers
MCQ Questions for CBSE Class 4 with Answers
MCQ Questions for CBSE Class 3 with Answers
MCQ Questions for CBSE Class 2 with Answers
MCQ Questions for CBSE Class 1 with Answers
Quiz
CBSE
/
Class 12
/
Physics
/
Moving Charges and Magnetism
1.
Tesla is a unit of:
electric flux
magnetic flux
magnetic field
electric field
2.
10 eV electron is circulating in a plane at right angle to a uniform field of magnetic induction 10
-1
Wb/m² (1G). The orbital radius of electron is:
12 cm
16 cm
11 cm
18 cm
3.
A cyclotron can be used to produce high energy:
neutrons
deutrons
β particles
α partifcles
4.
The radius of the trajectory of a charged particle in a uniform magnetic field is proportional to the:
charge on the particle
energy of the particle
momentum of the particle
all the above
5.
The force
→
F
experienced by a particle of charge q moving with velocity
→
v
in a magnetic field \(\vec{B\) is given by,
→
F
= q(
→
F
×
→
B
)
→
F
= q(
→
B
× (
→
b
)
→
F
= q(
→
v
× (
→
B
)
→
F
= q(
→
v
×
→
B
)
6.
The torque acting on a magnetic dipole of moment [latex]\vec{p_m}[/latex] when placed in a magnetic field
→
B
is:
p
m
B
→
p
m
×
→
B
→
p
m
→
B
p
m
B
7.
In thomson spectrograph
→
E
⊥
→
B
, then velocity of electron beam will be:
|
→
E
|/|
→
B
|
→
E
×
→
B
|
→
B
|/|
→
E
|
E² / B²
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Moving Charges and Magnetism
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