362742 A metal wire of mass $m$ slides without friction on two horizontal rails placed at a distance $l$ apart. The track lies in a uniform vertical magnetic field $B$. A constant current i flows along the rails across the wire to the other rail. The acceleration of the wire is

362744 A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is $F$, the net force on the remaining three arms of the loop is:

362745 A horizontal metal wire is carrying an electric current from the north to the south. Using a uniform magnetic field, it is to be prevented from falling under gravity. The direction of this magnetic field should be towards the

362742 A metal wire of mass $m$ slides without friction on two horizontal rails placed at a distance $l$ apart. The track lies in a uniform vertical magnetic field $B$. A constant current i flows along the rails across the wire to the other rail. The acceleration of the wire is

362743 A rigid wire consists of a semicircular portion of radius $R$ and two straight sections. The wire is partially immersed in a perpendicular magnetic field $\overrightarrow{B}=B_0\hat{j}$ as shown in figure. The magnetic force on the wire if it has a current $i$ is

362744 A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is $F$, the net force on the remaining three arms of the loop is:

362745 A horizontal metal wire is carrying an electric current from the north to the south. Using a uniform magnetic field, it is to be prevented from falling under gravity. The direction of this magnetic field should be towards the

362742 A metal wire of mass $m$ slides without friction on two horizontal rails placed at a distance $l$ apart. The track lies in a uniform vertical magnetic field $B$. A constant current i flows along the rails across the wire to the other rail. The acceleration of the wire is

362743 A rigid wire consists of a semicircular portion of radius $R$ and two straight sections. The wire is partially immersed in a perpendicular magnetic field $\overrightarrow{B}=B_0\hat{j}$ as shown in figure. The magnetic force on the wire if it has a current $i$ is

362744 A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is $F$, the net force on the remaining three arms of the loop is:

362745 A horizontal metal wire is carrying an electric current from the north to the south. Using a uniform magnetic field, it is to be prevented from falling under gravity. The direction of this magnetic field should be towards the

362742 A metal wire of mass $m$ slides without friction on two horizontal rails placed at a distance $l$ apart. The track lies in a uniform vertical magnetic field $B$. A constant current i flows along the rails across the wire to the other rail. The acceleration of the wire is

362743 A rigid wire consists of a semicircular portion of radius $R$ and two straight sections. The wire is partially immersed in a perpendicular magnetic field $\overrightarrow{B}=B_0\hat{j}$ as shown in figure. The magnetic force on the wire if it has a current $i$ is

362744 A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is $F$, the net force on the remaining three arms of the loop is:

362745 A horizontal metal wire is carrying an electric current from the north to the south. Using a uniform magnetic field, it is to be prevented from falling under gravity. The direction of this magnetic field should be towards the