QBManager

Magnetism and Matter

154335 According to Curie's law,

1

χ \propto (T - T_{c})

2

χ \propto \frac{1}{T - T_{c}}

3

χ \propto \frac{1}{T}

4

χ \propto T

Explanation:

C Curie's law states that in a paramagnetic material the materials magnetization is inversely proportional to the absolute temperature.
According to curie's law,
$χ = \frac{μ_{0} C}{T}$
$χ \propto \frac{1}{T}$

COMEDK 2018

Magnetism and Matter

154338 The variation of magnetic susceptibility $(χ)$ with temperature for a diamagnetic substance is best represented by

1

2

3

4

BITSAT-2018

Magnetism and Matter

154344 Select the correct statement from the following

1 The magnetic dip is zero at the centre of the earth

2 Magnetic dip decreases as we move away from the equator towards the magnetic pole

3 Magnetic dip increases as we move away from the equator towards the magnetic pole

4 Magnetic dip does not vary from place to place

Explanation:

C At equator, magnetic dip angle $δ = 0^{\circ}$
At poles, $δ = 90^{\circ}$
Magnetic dip angle increases as we move away from the equator toward the magnetic poles.

J and K CET-2017

Magnetism and Matter

154345 A very long conductor carries a current of $1 A$ . The magnetic field at a point whose distance is $0.1 m$ from one end of the conductor is (in ' $T$ ')

1

10^{- 6}

2

2 \times 10^{- 6}

3

10^{- 3}

4

10^{- 2}

Explanation:

A Given that, I = $1 Amp$
$r = 0.1 m$
Then magnetic field from one end of conductor
$B = \frac{μ_{0} I}{4 π r} = \frac{4 π \times 10^{- 7} \times 1}{4 π \times 0.1}$
$B = 10^{- 6} T$

J and K CET-2017

Magnetism and Matter

154335 According to Curie's law,

1

χ \propto (T - T_{c})

2

χ \propto \frac{1}{T - T_{c}}

3

χ \propto \frac{1}{T}

4

χ \propto T

Explanation:

C Curie's law states that in a paramagnetic material the materials magnetization is inversely proportional to the absolute temperature.
According to curie's law,
$χ = \frac{μ_{0} C}{T}$
$χ \propto \frac{1}{T}$

COMEDK 2018

Magnetism and Matter

154338 The variation of magnetic susceptibility $(χ)$ with temperature for a diamagnetic substance is best represented by

1

2

3

4

BITSAT-2018

Magnetism and Matter

154344 Select the correct statement from the following

1 The magnetic dip is zero at the centre of the earth

2 Magnetic dip decreases as we move away from the equator towards the magnetic pole

3 Magnetic dip increases as we move away from the equator towards the magnetic pole

4 Magnetic dip does not vary from place to place

Explanation:

C At equator, magnetic dip angle $δ = 0^{\circ}$
At poles, $δ = 90^{\circ}$
Magnetic dip angle increases as we move away from the equator toward the magnetic poles.

J and K CET-2017

Magnetism and Matter

154345 A very long conductor carries a current of $1 A$ . The magnetic field at a point whose distance is $0.1 m$ from one end of the conductor is (in ' $T$ ')

1

10^{- 6}

2

2 \times 10^{- 6}

3

10^{- 3}

4

10^{- 2}

Explanation:

A Given that, I = $1 Amp$
$r = 0.1 m$
Then magnetic field from one end of conductor
$B = \frac{μ_{0} I}{4 π r} = \frac{4 π \times 10^{- 7} \times 1}{4 π \times 0.1}$
$B = 10^{- 6} T$

J and K CET-2017

Magnetism and Matter

154335 According to Curie's law,

1

χ \propto (T - T_{c})

2

χ \propto \frac{1}{T - T_{c}}

3

χ \propto \frac{1}{T}

4

χ \propto T

Explanation:

C Curie's law states that in a paramagnetic material the materials magnetization is inversely proportional to the absolute temperature.
According to curie's law,
$χ = \frac{μ_{0} C}{T}$
$χ \propto \frac{1}{T}$

COMEDK 2018

Magnetism and Matter

154338 The variation of magnetic susceptibility $(χ)$ with temperature for a diamagnetic substance is best represented by

1

2

3

4

BITSAT-2018

Magnetism and Matter

154344 Select the correct statement from the following

1 The magnetic dip is zero at the centre of the earth

2 Magnetic dip decreases as we move away from the equator towards the magnetic pole

3 Magnetic dip increases as we move away from the equator towards the magnetic pole

4 Magnetic dip does not vary from place to place

Explanation:

C At equator, magnetic dip angle $δ = 0^{\circ}$
At poles, $δ = 90^{\circ}$
Magnetic dip angle increases as we move away from the equator toward the magnetic poles.

J and K CET-2017

Magnetism and Matter

154345 A very long conductor carries a current of $1 A$ . The magnetic field at a point whose distance is $0.1 m$ from one end of the conductor is (in ' $T$ ')

1

10^{- 6}

2

2 \times 10^{- 6}

3

10^{- 3}

4

10^{- 2}

Explanation:

A Given that, I = $1 Amp$
$r = 0.1 m$
Then magnetic field from one end of conductor
$B = \frac{μ_{0} I}{4 π r} = \frac{4 π \times 10^{- 7} \times 1}{4 π \times 0.1}$
$B = 10^{- 6} T$

J and K CET-2017

Magnetism and Matter

154335 According to Curie's law,

1

χ \propto (T - T_{c})

2

χ \propto \frac{1}{T - T_{c}}

3

χ \propto \frac{1}{T}

4

χ \propto T

Explanation:

C Curie's law states that in a paramagnetic material the materials magnetization is inversely proportional to the absolute temperature.
According to curie's law,
$χ = \frac{μ_{0} C}{T}$
$χ \propto \frac{1}{T}$

COMEDK 2018

Magnetism and Matter

154338 The variation of magnetic susceptibility $(χ)$ with temperature for a diamagnetic substance is best represented by

1

2

3

4

BITSAT-2018

Magnetism and Matter

154344 Select the correct statement from the following

1 The magnetic dip is zero at the centre of the earth

2 Magnetic dip decreases as we move away from the equator towards the magnetic pole

3 Magnetic dip increases as we move away from the equator towards the magnetic pole

4 Magnetic dip does not vary from place to place

Explanation:

C At equator, magnetic dip angle $δ = 0^{\circ}$
At poles, $δ = 90^{\circ}$
Magnetic dip angle increases as we move away from the equator toward the magnetic poles.

J and K CET-2017

Magnetism and Matter

154345 A very long conductor carries a current of $1 A$ . The magnetic field at a point whose distance is $0.1 m$ from one end of the conductor is (in ' $T$ ')

1

10^{- 6}

2

2 \times 10^{- 6}

3

10^{- 3}

4

10^{- 2}

Explanation:

A Given that, I = $1 Amp$
$r = 0.1 m$
Then magnetic field from one end of conductor
$B = \frac{μ_{0} I}{4 π r} = \frac{4 π \times 10^{- 7} \times 1}{4 π \times 0.1}$
$B = 10^{- 6} T$

J and K CET-2017

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