Torque & Magnetic Dipole
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PHXII04:MOVING CHARGES AND MAGNETISM

363015 A circular coil and a square coil is prepared from two identical metal wires and a current is passed through it. Ratio of magnetic dipole moment associated with circular coil to that of square coil is

1 \(\dfrac{2}{\pi}\)
2 \(\dfrac{\pi}{2}\)
3 \(\pi\)
4 \(\dfrac{4}{\pi}\)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM

363016 For a current-carrying wire loop of \(N\)-turns, placed in region of a uniform magnetic field \(B\), match Column I and Column II
Column I
Column II
A
Torque on loop
P
\(MB\)
B
Torque on loop when \(\overrightarrow M \)
Q
\(NIA\)
C
Magnetic moment of loop
R
Zero
D
Torque on loop when \(\overrightarrow M \) is perpendicular to \(\overrightarrow B \)
S
\(\overrightarrow M \times \overrightarrow B \)

1 A - P, B - Q, C - E, D - S
2 A - Q, B - P, C - S, D - R
3 A - S, B - R, C - Q, D - P
4 A - P, B - R, C - S, D - Q
PHXII04:MOVING CHARGES AND MAGNETISM

363017 A coil carrying current \(I\) has radius \(r\) and number of turns \(n\). It is rewound so that radius of new coil is \(\dfrac{r}{4}\) and it carries current \(I\). The ratio of magnetic moment of new coil to that of original coil is

1 1
2 \(\dfrac{1}{2}\)
3 \(\dfrac{1}{4}\)
4 \(\dfrac{1}{8}\)
MHTCET - 2015
PHXII04:MOVING CHARGES AND MAGNETISM

363018 The magnetic field at the centre of a current carrying circular coil of area '\(A\)' is '\(B\)'. The magnetic moment of the coil is
[ \(\mu_{0}=\) permeability of free space.]

1 \(\dfrac{B A^{2}}{\mu_{0} \pi}\)
2 \(\dfrac{B A^{3 / 2}}{\mu_{0} \pi}\)
3 \(\dfrac{2 B A^{3 / 2}}{\mu_{0} \pi^{1 / 2}}\)
4 \(\dfrac{\mu_{0} \pi^{1 / 2}}{B A^{3 / 2}}\)
MHTCET - 2022
NEET DIGITAL LIBRARY
PHXII04:MOVING CHARGES AND MAGNETISM

363015 A circular coil and a square coil is prepared from two identical metal wires and a current is passed through it. Ratio of magnetic dipole moment associated with circular coil to that of square coil is

1 \(\dfrac{2}{\pi}\)
2 \(\dfrac{\pi}{2}\)
3 \(\pi\)
4 \(\dfrac{4}{\pi}\)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM

363016 For a current-carrying wire loop of \(N\)-turns, placed in region of a uniform magnetic field \(B\), match Column I and Column II
Column I
Column II
A
Torque on loop
P
\(MB\)
B
Torque on loop when \(\overrightarrow M \)
Q
\(NIA\)
C
Magnetic moment of loop
R
Zero
D
Torque on loop when \(\overrightarrow M \) is perpendicular to \(\overrightarrow B \)
S
\(\overrightarrow M \times \overrightarrow B \)

1 A - P, B - Q, C - E, D - S
2 A - Q, B - P, C - S, D - R
3 A - S, B - R, C - Q, D - P
4 A - P, B - R, C - S, D - Q
PHXII04:MOVING CHARGES AND MAGNETISM

363017 A coil carrying current \(I\) has radius \(r\) and number of turns \(n\). It is rewound so that radius of new coil is \(\dfrac{r}{4}\) and it carries current \(I\). The ratio of magnetic moment of new coil to that of original coil is

1 1
2 \(\dfrac{1}{2}\)
3 \(\dfrac{1}{4}\)
4 \(\dfrac{1}{8}\)
MHTCET - 2015
PHXII04:MOVING CHARGES AND MAGNETISM

363018 The magnetic field at the centre of a current carrying circular coil of area '\(A\)' is '\(B\)'. The magnetic moment of the coil is
[ \(\mu_{0}=\) permeability of free space.]

1 \(\dfrac{B A^{2}}{\mu_{0} \pi}\)
2 \(\dfrac{B A^{3 / 2}}{\mu_{0} \pi}\)
3 \(\dfrac{2 B A^{3 / 2}}{\mu_{0} \pi^{1 / 2}}\)
4 \(\dfrac{\mu_{0} \pi^{1 / 2}}{B A^{3 / 2}}\)
MHTCET - 2022
Join With Us for More Updates
PHXII04:MOVING CHARGES AND MAGNETISM

363015 A circular coil and a square coil is prepared from two identical metal wires and a current is passed through it. Ratio of magnetic dipole moment associated with circular coil to that of square coil is

1 \(\dfrac{2}{\pi}\)
2 \(\dfrac{\pi}{2}\)
3 \(\pi\)
4 \(\dfrac{4}{\pi}\)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM

363016 For a current-carrying wire loop of \(N\)-turns, placed in region of a uniform magnetic field \(B\), match Column I and Column II
Column I
Column II
A
Torque on loop
P
\(MB\)
B
Torque on loop when \(\overrightarrow M \)
Q
\(NIA\)
C
Magnetic moment of loop
R
Zero
D
Torque on loop when \(\overrightarrow M \) is perpendicular to \(\overrightarrow B \)
S
\(\overrightarrow M \times \overrightarrow B \)

1 A - P, B - Q, C - E, D - S
2 A - Q, B - P, C - S, D - R
3 A - S, B - R, C - Q, D - P
4 A - P, B - R, C - S, D - Q
PHXII04:MOVING CHARGES AND MAGNETISM

363017 A coil carrying current \(I\) has radius \(r\) and number of turns \(n\). It is rewound so that radius of new coil is \(\dfrac{r}{4}\) and it carries current \(I\). The ratio of magnetic moment of new coil to that of original coil is

1 1
2 \(\dfrac{1}{2}\)
3 \(\dfrac{1}{4}\)
4 \(\dfrac{1}{8}\)
MHTCET - 2015
PHXII04:MOVING CHARGES AND MAGNETISM

363018 The magnetic field at the centre of a current carrying circular coil of area '\(A\)' is '\(B\)'. The magnetic moment of the coil is
[ \(\mu_{0}=\) permeability of free space.]

1 \(\dfrac{B A^{2}}{\mu_{0} \pi}\)
2 \(\dfrac{B A^{3 / 2}}{\mu_{0} \pi}\)
3 \(\dfrac{2 B A^{3 / 2}}{\mu_{0} \pi^{1 / 2}}\)
4 \(\dfrac{\mu_{0} \pi^{1 / 2}}{B A^{3 / 2}}\)
MHTCET - 2022
For More Updates join with Us
PHXII04:MOVING CHARGES AND MAGNETISM

363015 A circular coil and a square coil is prepared from two identical metal wires and a current is passed through it. Ratio of magnetic dipole moment associated with circular coil to that of square coil is

1 \(\dfrac{2}{\pi}\)
2 \(\dfrac{\pi}{2}\)
3 \(\pi\)
4 \(\dfrac{4}{\pi}\)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM

363016 For a current-carrying wire loop of \(N\)-turns, placed in region of a uniform magnetic field \(B\), match Column I and Column II
Column I
Column II
A
Torque on loop
P
\(MB\)
B
Torque on loop when \(\overrightarrow M \)
Q
\(NIA\)
C
Magnetic moment of loop
R
Zero
D
Torque on loop when \(\overrightarrow M \) is perpendicular to \(\overrightarrow B \)
S
\(\overrightarrow M \times \overrightarrow B \)

1 A - P, B - Q, C - E, D - S
2 A - Q, B - P, C - S, D - R
3 A - S, B - R, C - Q, D - P
4 A - P, B - R, C - S, D - Q
PHXII04:MOVING CHARGES AND MAGNETISM

363017 A coil carrying current \(I\) has radius \(r\) and number of turns \(n\). It is rewound so that radius of new coil is \(\dfrac{r}{4}\) and it carries current \(I\). The ratio of magnetic moment of new coil to that of original coil is

1 1
2 \(\dfrac{1}{2}\)
3 \(\dfrac{1}{4}\)
4 \(\dfrac{1}{8}\)
MHTCET - 2015
PHXII04:MOVING CHARGES AND MAGNETISM

363018 The magnetic field at the centre of a current carrying circular coil of area '\(A\)' is '\(B\)'. The magnetic moment of the coil is
[ \(\mu_{0}=\) permeability of free space.]

1 \(\dfrac{B A^{2}}{\mu_{0} \pi}\)
2 \(\dfrac{B A^{3 / 2}}{\mu_{0} \pi}\)
3 \(\dfrac{2 B A^{3 / 2}}{\mu_{0} \pi^{1 / 2}}\)
4 \(\dfrac{\mu_{0} \pi^{1 / 2}}{B A^{3 / 2}}\)
MHTCET - 2022
NEET DIGITAL LIBRARY