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Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Q). The magnetic moment of a small bar magnet is 0.9
A
·
m
2
. If it is placed in a uniform magnetic field making an angle of
30
°
with it, a torque of 0.063
N
·
m
acts on it. What is the magnetic field?
0
.
14
T
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
Q. Force experienced by a magnetic pole when kept in a uniform magnetic field of 4 X 10
-5
T , is the same as the force experienced by that pole when kept at a distance of 10 cm from an unknown pole. Determine the pole - strength of the unknown pole.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
10
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Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Q). The ratio of the magnetic fields at distances 30 and 60 cm respectively from the centre of a bar magnet is 25 : 2. Determine the length of the magnet.
[30 cm]
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Q.8. Magnetic moment of a small bar magnet is 2
A
·
m
2
. Determine the magnetic field at a point 10 cm from the centre of the magnet on its perpendicular bisector.
[
2
×
10
-
4
T
]
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
Q. Determine the magnetic field of a bar magnet of length 10 cm , having a moment of 0.5 A
·
m
2
No links please , on the axis at a point 20 cm away from the mid -point of the magnet.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Answer
2
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Strengths of two magnetic poles are 0.5 A . m and 2 A. m. If they are at a distance of 5cm from each other in air, what will be the mutual force acting between them? For what separation does the force become
10
-
5
N
?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 28/12/17
No links please
Magnetic Moment
Radius of a circular conducting coil is 7 cm and the number of turns in it is 50. If 1A current is sent through it, determine magnetic moment of the coil.
Answer
1
Sofiya Parihar
Subject: Physics
, asked on 27/12/17
Dear experts lzlz dont post answers from the previous similar questions asked by students .give me the answer of the question which i have asked
Answer
1
Komal Sharma
Subject: Physics
, asked on 21/12/17
32 and 33
Q32. A bar magnet having a magnetic moment of 2 × 10
4
JT
4
is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 × 10
–4
T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60° from the field is :-
(1) 2J (2) 0.6 J (3) 12 .J (4) 6 J
Q33. A square current carrying keep loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is F, the net force on the complete loop is :
(1) F (2) 3 F (3) 0 (4) –F
Answer
1
Komal Sharma
Subject: Physics
, asked on 21/12/17
Solve this:
Answer
2
Komal Sharma
Subject: Physics
, asked on 21/12/17
23,24 and 26 solve
Answer
1
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What are you looking for?
Q). The magnetic moment of a small bar magnet is 0.9 . If it is placed in a uniform magnetic field making an angle of with it, a torque of 0.063 acts on it. What is the magnetic field?
Q). The ratio of the magnetic fields at distances 30 and 60 cm respectively from the centre of a bar magnet is 25 : 2. Determine the length of the magnet.
[30 cm]
Q.8. Magnetic moment of a small bar magnet is 2 . Determine the magnetic field at a point 10 cm from the centre of the magnet on its perpendicular bisector.
Strengths of two magnetic poles are 0.5 A . m and 2 A. m. If they are at a distance of 5cm from each other in air, what will be the mutual force acting between them? For what separation does the force become ?
Magnetic Moment
Radius of a circular conducting coil is 7 cm and the number of turns in it is 50. If 1A current is sent through it, determine magnetic moment of the coil.
Q32. A bar magnet having a magnetic moment of 2 × 104 JT4 is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 × 10–4 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60° from the field is :-
(1) 2J (2) 0.6 J (3) 12 .J (4) 6 J
Q33. A square current carrying keep loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is F, the net force on the complete loop is :
(1) F (2) 3 F (3) 0 (4) –F