153166 A long cylindrical wire of radius $R$ carries a uniform current $I$ flowing through it. The variation of magnetic field with distance $r$ from the axis of the wire is shown by :

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153164
As shown in the figure, a wire is bent to form a Dshaped closed loop, carrying current I, where the curved part is a semi-circle of radius $R$. The loop is placed in a uniform magnetic field $\vec{B}$, which is directed into the plane of the paper. The magnetic force felt by the closed loop is

153167 When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to current ' $I$ ' flowing through it is $B_{1}$. If the same wire is turned into four loops to make a circular coil, the magnetic induction at the centre of this coil is ' $B_{2}$ ' for same current then relation between $B_{2}$ and $B_{1}$ is

153168 An electron moves in a circular orbit of radius ' $r$ ' with uniform speed ' $v$ '. It produces magnetic field ' $B$ ' at the centre of circle. The magnetic field ' $B$ ' is proportional to

153170 An infinitely long straight conductor is bent into shape as shown in figure. It carries a current $I \mathrm{~A}$ and the radius of circular loop is $r$ $m$. The magnetic induction at the centre of the circular loop is

153166 A long cylindrical wire of radius $R$ carries a uniform current $I$ flowing through it. The variation of magnetic field with distance $r$ from the axis of the wire is shown by :

1

2

3

4

153164
As shown in the figure, a wire is bent to form a Dshaped closed loop, carrying current I, where the curved part is a semi-circle of radius $R$. The loop is placed in a uniform magnetic field $\vec{B}$, which is directed into the plane of the paper. The magnetic force felt by the closed loop is

153167 When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to current ' $I$ ' flowing through it is $B_{1}$. If the same wire is turned into four loops to make a circular coil, the magnetic induction at the centre of this coil is ' $B_{2}$ ' for same current then relation between $B_{2}$ and $B_{1}$ is

153168 An electron moves in a circular orbit of radius ' $r$ ' with uniform speed ' $v$ '. It produces magnetic field ' $B$ ' at the centre of circle. The magnetic field ' $B$ ' is proportional to

153170 An infinitely long straight conductor is bent into shape as shown in figure. It carries a current $I \mathrm{~A}$ and the radius of circular loop is $r$ $m$. The magnetic induction at the centre of the circular loop is

153166 A long cylindrical wire of radius $R$ carries a uniform current $I$ flowing through it. The variation of magnetic field with distance $r$ from the axis of the wire is shown by :

1

2

3

4

153164
As shown in the figure, a wire is bent to form a Dshaped closed loop, carrying current I, where the curved part is a semi-circle of radius $R$. The loop is placed in a uniform magnetic field $\vec{B}$, which is directed into the plane of the paper. The magnetic force felt by the closed loop is

153167 When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to current ' $I$ ' flowing through it is $B_{1}$. If the same wire is turned into four loops to make a circular coil, the magnetic induction at the centre of this coil is ' $B_{2}$ ' for same current then relation between $B_{2}$ and $B_{1}$ is

153168 An electron moves in a circular orbit of radius ' $r$ ' with uniform speed ' $v$ '. It produces magnetic field ' $B$ ' at the centre of circle. The magnetic field ' $B$ ' is proportional to

153170 An infinitely long straight conductor is bent into shape as shown in figure. It carries a current $I \mathrm{~A}$ and the radius of circular loop is $r$ $m$. The magnetic induction at the centre of the circular loop is

153166 A long cylindrical wire of radius $R$ carries a uniform current $I$ flowing through it. The variation of magnetic field with distance $r$ from the axis of the wire is shown by :

1

2

3

4

153164
As shown in the figure, a wire is bent to form a Dshaped closed loop, carrying current I, where the curved part is a semi-circle of radius $R$. The loop is placed in a uniform magnetic field $\vec{B}$, which is directed into the plane of the paper. The magnetic force felt by the closed loop is

153167 When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to current ' $I$ ' flowing through it is $B_{1}$. If the same wire is turned into four loops to make a circular coil, the magnetic induction at the centre of this coil is ' $B_{2}$ ' for same current then relation between $B_{2}$ and $B_{1}$ is

153168 An electron moves in a circular orbit of radius ' $r$ ' with uniform speed ' $v$ '. It produces magnetic field ' $B$ ' at the centre of circle. The magnetic field ' $B$ ' is proportional to

153170 An infinitely long straight conductor is bent into shape as shown in figure. It carries a current $I \mathrm{~A}$ and the radius of circular loop is $r$ $m$. The magnetic induction at the centre of the circular loop is

153166 A long cylindrical wire of radius $R$ carries a uniform current $I$ flowing through it. The variation of magnetic field with distance $r$ from the axis of the wire is shown by :

1

2

3

4

153164
As shown in the figure, a wire is bent to form a Dshaped closed loop, carrying current I, where the curved part is a semi-circle of radius $R$. The loop is placed in a uniform magnetic field $\vec{B}$, which is directed into the plane of the paper. The magnetic force felt by the closed loop is

153167 When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to current ' $I$ ' flowing through it is $B_{1}$. If the same wire is turned into four loops to make a circular coil, the magnetic induction at the centre of this coil is ' $B_{2}$ ' for same current then relation between $B_{2}$ and $B_{1}$ is

153168 An electron moves in a circular orbit of radius ' $r$ ' with uniform speed ' $v$ '. It produces magnetic field ' $B$ ' at the centre of circle. The magnetic field ' $B$ ' is proportional to

153170 An infinitely long straight conductor is bent into shape as shown in figure. It carries a current $I \mathrm{~A}$ and the radius of circular loop is $r$ $m$. The magnetic induction at the centre of the circular loop is