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Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Short answer type Question
Q. 4. Explain with diagram the patterns of the magnetic lines of force when a sphere made of (i) paramagnetic and (ii) diamagnetic material is placed in a uniform magnetic field.
Answer
2
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Short Answer Type Question
Q.3. For what kind of magnetic material the magnetic susceptibility is negative? Give an example.
Answer
2
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Q.2. In which groups of magnetic materials nickel and copper belong to?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Short Answer Type Question
Q.1. What are the values of magnetic permeability and magnetic susceptibility for paramagnetic, diamagnetic and ferromagnetic materials?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Q.7. Which materials should be chosen for construction of electromagnets and permanent magnets and why?
Answer
2
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Short Answer Type Question
Q.6. Define intensity of magnetisation and magnetic induction vector. How are they ralated?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Q.5. What are the values of magnetic permeability and magnetic susceptibilitiy of vacuum?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Q.4. What do you mean by relative magnetic permeability?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Q.2. Define magnetic permeability and magnetic susceptibility of a magnetic material.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 29/1/18
No links please
Answer
1
Guna Shekar
Subject: Physics
, asked on 27/1/18
A geostationary satellite is revolving at a height 5R from the earth's surface, where R is radius of earth. The time period of a satellite which is at a height of R from earth's surface will be?
Answer
1
Prerna Varshney
Subject: Physics
, asked on 27/1/18
(i) Depict magnetic field lines due to two straight, long, parallel conductors carrying steady currents I
1
and I
2
in the same direction.
(ii) Write the expression for the magnetic field produced by one of the conductor over the other. Deduce an expression for the force per unit length.
(iii) Determine the direction of this force.
Answer
1
Sughosh G Samprati
Subject: Physics
, asked on 24/1/18
Q. Force between two identical short bar magnets whose centres are r metre apart is 4.8 N when their axes are in the same line. If the separation is increased to 2r metre, the force between them is reduced to
0.3 N
0.6 N
2.4 N
1.2 N
Answer
2
Sughosh G Samprati
Subject: Physics
, asked on 24/1/18
Q. What is the component of the magnetic field along the line OP at the point P due to the bar magnet of magnetic moment 1.732 A
m
2
?
Answer
1
Sughosh G Samprati
Subject: Physics
, asked on 24/1/18
Solve this:
Q.3. In the figure
θ
=
tan
-
1
2
, then the correct direction of the magnetic field at P can be shown by the arrow.
(1) 2
(2) 4
(3) 1
(4) 3
Answer
1
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What are you looking for?
Short answer type Question
Q. 4. Explain with diagram the patterns of the magnetic lines of force when a sphere made of (i) paramagnetic and (ii) diamagnetic material is placed in a uniform magnetic field.
Short Answer Type Question
Q.3. For what kind of magnetic material the magnetic susceptibility is negative? Give an example.
Q.2. In which groups of magnetic materials nickel and copper belong to?
Short Answer Type Question
Q.1. What are the values of magnetic permeability and magnetic susceptibility for paramagnetic, diamagnetic and ferromagnetic materials?
Q.7. Which materials should be chosen for construction of electromagnets and permanent magnets and why?
Short Answer Type Question
Q.6. Define intensity of magnetisation and magnetic induction vector. How are they ralated?
Q.5. What are the values of magnetic permeability and magnetic susceptibilitiy of vacuum?
Q.4. What do you mean by relative magnetic permeability?
Q.2. Define magnetic permeability and magnetic susceptibility of a magnetic material.
(ii) Write the expression for the magnetic field produced by one of the conductor over the other. Deduce an expression for the force per unit length.
(iii) Determine the direction of this force.
Q. Force between two identical short bar magnets whose centres are r metre apart is 4.8 N when their axes are in the same line. If the separation is increased to 2r metre, the force between them is reduced to
Q. What is the component of the magnetic field along the line OP at the point P due to the bar magnet of magnetic moment 1.732 A?
(1) 2
(2) 4
(3) 1
(4) 3