154044 Figure represents an area $A=0.5 \mathrm{~m}^{2}$ situated in a uniform magnetic field $B=2.0 \mathrm{~Wb} / \mathrm{m}^{2}$ and making an angle of $60^{\circ}$ with respect to magnetic field. The value of magnetic flux through the area will be-

154046 A bar magnet has coercivity $4 \times 10^{3} \mathrm{Am}^{-1}$. It is desired to demagnetize it by inserting it inside a solenoid $12 \mathrm{~cm}$ long and having 60 turns. The current that should be sent through the solenoid is-

154048 $0.8 \mathrm{~J}$ work is done in rotating a magnet by $60^{\circ}$, placed parallel to a uniform magnetic field. How much work is done in rotating it $30^{\circ}$ further?

154049 A bar magnet when placed at an angle of $30^{\circ}$ to the direction of magnetic field induction of $5 \times$ $10^{-5} \mathrm{~T}$, experiences a moment of couple $2.5 \times 10^{-}$ ${ }^{6} \mathrm{~N}-\mathrm{m}$. If the length of the magnet is $5 \mathrm{~cm}$ its pole strength is

154044 Figure represents an area $A=0.5 \mathrm{~m}^{2}$ situated in a uniform magnetic field $B=2.0 \mathrm{~Wb} / \mathrm{m}^{2}$ and making an angle of $60^{\circ}$ with respect to magnetic field. The value of magnetic flux through the area will be-

154046 A bar magnet has coercivity $4 \times 10^{3} \mathrm{Am}^{-1}$. It is desired to demagnetize it by inserting it inside a solenoid $12 \mathrm{~cm}$ long and having 60 turns. The current that should be sent through the solenoid is-

154048 $0.8 \mathrm{~J}$ work is done in rotating a magnet by $60^{\circ}$, placed parallel to a uniform magnetic field. How much work is done in rotating it $30^{\circ}$ further?

154049 A bar magnet when placed at an angle of $30^{\circ}$ to the direction of magnetic field induction of $5 \times$ $10^{-5} \mathrm{~T}$, experiences a moment of couple $2.5 \times 10^{-}$ ${ }^{6} \mathrm{~N}-\mathrm{m}$. If the length of the magnet is $5 \mathrm{~cm}$ its pole strength is

154044 Figure represents an area $A=0.5 \mathrm{~m}^{2}$ situated in a uniform magnetic field $B=2.0 \mathrm{~Wb} / \mathrm{m}^{2}$ and making an angle of $60^{\circ}$ with respect to magnetic field. The value of magnetic flux through the area will be-

154046 A bar magnet has coercivity $4 \times 10^{3} \mathrm{Am}^{-1}$. It is desired to demagnetize it by inserting it inside a solenoid $12 \mathrm{~cm}$ long and having 60 turns. The current that should be sent through the solenoid is-

154048 $0.8 \mathrm{~J}$ work is done in rotating a magnet by $60^{\circ}$, placed parallel to a uniform magnetic field. How much work is done in rotating it $30^{\circ}$ further?

154049 A bar magnet when placed at an angle of $30^{\circ}$ to the direction of magnetic field induction of $5 \times$ $10^{-5} \mathrm{~T}$, experiences a moment of couple $2.5 \times 10^{-}$ ${ }^{6} \mathrm{~N}-\mathrm{m}$. If the length of the magnet is $5 \mathrm{~cm}$ its pole strength is

154044 Figure represents an area $A=0.5 \mathrm{~m}^{2}$ situated in a uniform magnetic field $B=2.0 \mathrm{~Wb} / \mathrm{m}^{2}$ and making an angle of $60^{\circ}$ with respect to magnetic field. The value of magnetic flux through the area will be-

154046 A bar magnet has coercivity $4 \times 10^{3} \mathrm{Am}^{-1}$. It is desired to demagnetize it by inserting it inside a solenoid $12 \mathrm{~cm}$ long and having 60 turns. The current that should be sent through the solenoid is-

154048 $0.8 \mathrm{~J}$ work is done in rotating a magnet by $60^{\circ}$, placed parallel to a uniform magnetic field. How much work is done in rotating it $30^{\circ}$ further?

154049 A bar magnet when placed at an angle of $30^{\circ}$ to the direction of magnetic field induction of $5 \times$ $10^{-5} \mathrm{~T}$, experiences a moment of couple $2.5 \times 10^{-}$ ${ }^{6} \mathrm{~N}-\mathrm{m}$. If the length of the magnet is $5 \mathrm{~cm}$ its pole strength is