00. Magnet and Magnetic Dipole
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NEET DIGITAL LIBRARY
Magnetism and Matter

154051 The effective length of a magnet is $31.4 \mathrm{~cm}$ and its pole strength is $0.5 \mathrm{Am}$. If it is bent in the form of semicircle, what will be its magnetic moment then ?

1 $0.12 \mathrm{Am}^{2}$
2 $0.1 \mathrm{Am}^{2}$
3 $0.05 \mathrm{Am}^{2}$
4 $0.01 \mathrm{Am}^{2}$
BCECE-2003
Magnetism and Matter

154052 The work done in turning a magnet of magnetic moment $M$ by an angle of $90^{\circ}$ from the meridian is $\mathbf{n}$ times the corresponding work done to turn it through an angle of $60^{\circ}$

1 $\mathrm{n}=\frac{1}{2}$
2 $\mathrm{n}=2$
3 $\mathrm{n}=\frac{1}{4}$
4 $\mathrm{n}=1$
UP CPMT-2013
Magnetism and Matter

154053 An iron rod is placed parallel to magnetic field of intensity $2000 \mathrm{~A} / \mathrm{m}$. The magnetic flux through the rod is $6 \times 10^{-4} \mathrm{~Wb}$ and its crosssectional area is $3 \mathrm{~cm}^{2}$. The magnetic permeability of the rod in $\mathrm{Wb} / \mathrm{A}-\mathrm{m}$

1 $10^{-1}$
2 $10^{-2}$
3 $10^{-3}$
4 $10^{-4}$
MHT-CET 2015
Magnetism and Matter

154055 A charge $+Q$ is moving upwards vertically. It enters a magnetic field directed to north. The force on the charge will be towards:

1 north
2 south
3 east
4 west
Karnataka CET-2010
Join With Us for More Updates
Magnetism and Matter

154051 The effective length of a magnet is $31.4 \mathrm{~cm}$ and its pole strength is $0.5 \mathrm{Am}$. If it is bent in the form of semicircle, what will be its magnetic moment then ?

1 $0.12 \mathrm{Am}^{2}$
2 $0.1 \mathrm{Am}^{2}$
3 $0.05 \mathrm{Am}^{2}$
4 $0.01 \mathrm{Am}^{2}$
BCECE-2003
Magnetism and Matter

154052 The work done in turning a magnet of magnetic moment $M$ by an angle of $90^{\circ}$ from the meridian is $\mathbf{n}$ times the corresponding work done to turn it through an angle of $60^{\circ}$

1 $\mathrm{n}=\frac{1}{2}$
2 $\mathrm{n}=2$
3 $\mathrm{n}=\frac{1}{4}$
4 $\mathrm{n}=1$
UP CPMT-2013
Magnetism and Matter

154053 An iron rod is placed parallel to magnetic field of intensity $2000 \mathrm{~A} / \mathrm{m}$. The magnetic flux through the rod is $6 \times 10^{-4} \mathrm{~Wb}$ and its crosssectional area is $3 \mathrm{~cm}^{2}$. The magnetic permeability of the rod in $\mathrm{Wb} / \mathrm{A}-\mathrm{m}$

1 $10^{-1}$
2 $10^{-2}$
3 $10^{-3}$
4 $10^{-4}$
MHT-CET 2015
Magnetism and Matter

154055 A charge $+Q$ is moving upwards vertically. It enters a magnetic field directed to north. The force on the charge will be towards:

1 north
2 south
3 east
4 west
Karnataka CET-2010
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Magnetism and Matter

154051 The effective length of a magnet is $31.4 \mathrm{~cm}$ and its pole strength is $0.5 \mathrm{Am}$. If it is bent in the form of semicircle, what will be its magnetic moment then ?

1 $0.12 \mathrm{Am}^{2}$
2 $0.1 \mathrm{Am}^{2}$
3 $0.05 \mathrm{Am}^{2}$
4 $0.01 \mathrm{Am}^{2}$
BCECE-2003
Magnetism and Matter

154052 The work done in turning a magnet of magnetic moment $M$ by an angle of $90^{\circ}$ from the meridian is $\mathbf{n}$ times the corresponding work done to turn it through an angle of $60^{\circ}$

1 $\mathrm{n}=\frac{1}{2}$
2 $\mathrm{n}=2$
3 $\mathrm{n}=\frac{1}{4}$
4 $\mathrm{n}=1$
UP CPMT-2013
Magnetism and Matter

154053 An iron rod is placed parallel to magnetic field of intensity $2000 \mathrm{~A} / \mathrm{m}$. The magnetic flux through the rod is $6 \times 10^{-4} \mathrm{~Wb}$ and its crosssectional area is $3 \mathrm{~cm}^{2}$. The magnetic permeability of the rod in $\mathrm{Wb} / \mathrm{A}-\mathrm{m}$

1 $10^{-1}$
2 $10^{-2}$
3 $10^{-3}$
4 $10^{-4}$
MHT-CET 2015
Magnetism and Matter

154055 A charge $+Q$ is moving upwards vertically. It enters a magnetic field directed to north. The force on the charge will be towards:

1 north
2 south
3 east
4 west
Karnataka CET-2010
NEET DIGITAL LIBRARY
Magnetism and Matter

154051 The effective length of a magnet is $31.4 \mathrm{~cm}$ and its pole strength is $0.5 \mathrm{Am}$. If it is bent in the form of semicircle, what will be its magnetic moment then ?

1 $0.12 \mathrm{Am}^{2}$
2 $0.1 \mathrm{Am}^{2}$
3 $0.05 \mathrm{Am}^{2}$
4 $0.01 \mathrm{Am}^{2}$
BCECE-2003
Magnetism and Matter

154052 The work done in turning a magnet of magnetic moment $M$ by an angle of $90^{\circ}$ from the meridian is $\mathbf{n}$ times the corresponding work done to turn it through an angle of $60^{\circ}$

1 $\mathrm{n}=\frac{1}{2}$
2 $\mathrm{n}=2$
3 $\mathrm{n}=\frac{1}{4}$
4 $\mathrm{n}=1$
UP CPMT-2013
Magnetism and Matter

154053 An iron rod is placed parallel to magnetic field of intensity $2000 \mathrm{~A} / \mathrm{m}$. The magnetic flux through the rod is $6 \times 10^{-4} \mathrm{~Wb}$ and its crosssectional area is $3 \mathrm{~cm}^{2}$. The magnetic permeability of the rod in $\mathrm{Wb} / \mathrm{A}-\mathrm{m}$

1 $10^{-1}$
2 $10^{-2}$
3 $10^{-3}$
4 $10^{-4}$
MHT-CET 2015
Magnetism and Matter

154055 A charge $+Q$ is moving upwards vertically. It enters a magnetic field directed to north. The force on the charge will be towards:

1 north
2 south
3 east
4 west
Karnataka CET-2010
Join With Us for More Updates