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Recent questions tagged magnetism-and-matter
Questions
Suppose a magnet is suspended by a vertical string, attached to its middle point. Given that the horizontal component of earth's magnetic field is $25\;\mu T$ and the vertical component of of earth's magnetic field is $40\;\mu T$, find the position in which the magnet can stay in equilibrium.
jeemain
physics
class12
ch5
magnetism-and-matter
earths-magnetism
easy
asked
Mar 14, 2014
by
balaji.thirumalai
1
answer
Relative permittivity and permeability of a material are $ \in_r$ and $ \mu_r$ , respectively. Which of the following values of these quantities are allowed for a diamagnetic material?
jeemain
aipmt
physics
cbse
class12
ch5
magnetism-and-matter
magnetic-properties-of-materials
easy
asked
Feb 27, 2014
by
thanvigandhi_1
1
answer
The dimensions of $ \large\frac{B^2C^2R^2}{2\mu_0}$ where $B$ is magnetic field,$ R$ is resistance and $ C$ is capacitance are
jeemain
aipmt
physics
cbse
class12
ch4
ch5
magnetism-and-matter
difficult
asked
Feb 23, 2014
by
thanvigandhi_1
1
answer
The force experienced by a pole of strength $100\: A-m$ at a distance of $0.2 \: m$ from a short magnet of length $10\: cm$ and pole strength $100\: A-m$ on its axial line will be
jeemain
aipmt
physics
cbse
class12
ch5
magnetism-and-matter
bar-magnet
medium
asked
Feb 22, 2014
by
thanvigandhi_1
1
answer
A bar magnet of magnetic moment $4 A-m^2$ is free to rotate about a vertical axis through its centre. The magnet is released from rest from east-west position. Kinetic energy of the magnet in the north- south position will be $(H = 25 \mu T)$
jeemain
aipmt
physics
cbse
class12
ch5
magnetism-and-matter
bar-magnet
easy
asked
Feb 21, 2014
by
thanvigandhi_1
1
answer
A paramagnetic substance is kept in a weak magnetic field and its absolute temperature $T$ is increased. As a result, its magnetisation
jeemain
aipmt
physics
cbse
class12
ch5
magnetism-and-matter
magnetic-properties-of-materials
medium
asked
Feb 21, 2014
by
thanvigandhi_1
1
answer
If a magnetic needle is kept in a non-uniform magnetic field, it experiences
jeemain
aipmt
physics
cbse
class12
ch5
magnetism-and-matter
easy
asked
Feb 19, 2014
by
thanvigandhi_1
1
answer
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