153831 Two infinite straight wires $A$ and $B, 1 \mathrm{~m}$ apart are carrying currents of $I$ and $4 I$ respectively. The distance of the point at which the resultant force is zero is

153832 Four wires, each of length $2.0 \mathrm{~m}$, are bent into four loops $P . Q, R$ and $S$ and then suspended in a uniform magnetic field. If the same current is passed in each, then the torque will be maximum on the loop

153834 Two long conductors a, separated by a distance d carry current $I_{1}$ and $I_{2}$ in the same direction. They exert a force $F$ on each other. Now the current in one of them is increased to two times and its direction is reversed. The distance is also increased to $3 \mathrm{~d}$. The new value of the force between them is

153840 Two small magnets have their masses and lengths in the ratio $1: 2$. The maximum torques experienced by them in a uniform magnetic field are the same. For small oscillations, the ratio of their time periods is

153843 A rectangular coil of length $0.12 \mathrm{~m}$ and width $0.1 \mathrm{~m}$ having 50 turns of wire is suspended vertically in a uniform magnetic field of strength $0.2 \mathrm{~Wb} / \mathrm{m}^{2}$. The coil carries a current of $2 \mathrm{~A}$. If the plane of the coil is inclined at an angle of $30^{\circ}$ with the direction of the field, the torque required to keep the coil in stable equilibrium will be

153831 Two infinite straight wires $A$ and $B, 1 \mathrm{~m}$ apart are carrying currents of $I$ and $4 I$ respectively. The distance of the point at which the resultant force is zero is

153832 Four wires, each of length $2.0 \mathrm{~m}$, are bent into four loops $P . Q, R$ and $S$ and then suspended in a uniform magnetic field. If the same current is passed in each, then the torque will be maximum on the loop

153834 Two long conductors a, separated by a distance d carry current $I_{1}$ and $I_{2}$ in the same direction. They exert a force $F$ on each other. Now the current in one of them is increased to two times and its direction is reversed. The distance is also increased to $3 \mathrm{~d}$. The new value of the force between them is

153840 Two small magnets have their masses and lengths in the ratio $1: 2$. The maximum torques experienced by them in a uniform magnetic field are the same. For small oscillations, the ratio of their time periods is

153843 A rectangular coil of length $0.12 \mathrm{~m}$ and width $0.1 \mathrm{~m}$ having 50 turns of wire is suspended vertically in a uniform magnetic field of strength $0.2 \mathrm{~Wb} / \mathrm{m}^{2}$. The coil carries a current of $2 \mathrm{~A}$. If the plane of the coil is inclined at an angle of $30^{\circ}$ with the direction of the field, the torque required to keep the coil in stable equilibrium will be

153831 Two infinite straight wires $A$ and $B, 1 \mathrm{~m}$ apart are carrying currents of $I$ and $4 I$ respectively. The distance of the point at which the resultant force is zero is

153832 Four wires, each of length $2.0 \mathrm{~m}$, are bent into four loops $P . Q, R$ and $S$ and then suspended in a uniform magnetic field. If the same current is passed in each, then the torque will be maximum on the loop

153834 Two long conductors a, separated by a distance d carry current $I_{1}$ and $I_{2}$ in the same direction. They exert a force $F$ on each other. Now the current in one of them is increased to two times and its direction is reversed. The distance is also increased to $3 \mathrm{~d}$. The new value of the force between them is

153840 Two small magnets have their masses and lengths in the ratio $1: 2$. The maximum torques experienced by them in a uniform magnetic field are the same. For small oscillations, the ratio of their time periods is

153843 A rectangular coil of length $0.12 \mathrm{~m}$ and width $0.1 \mathrm{~m}$ having 50 turns of wire is suspended vertically in a uniform magnetic field of strength $0.2 \mathrm{~Wb} / \mathrm{m}^{2}$. The coil carries a current of $2 \mathrm{~A}$. If the plane of the coil is inclined at an angle of $30^{\circ}$ with the direction of the field, the torque required to keep the coil in stable equilibrium will be

153831 Two infinite straight wires $A$ and $B, 1 \mathrm{~m}$ apart are carrying currents of $I$ and $4 I$ respectively. The distance of the point at which the resultant force is zero is

153832 Four wires, each of length $2.0 \mathrm{~m}$, are bent into four loops $P . Q, R$ and $S$ and then suspended in a uniform magnetic field. If the same current is passed in each, then the torque will be maximum on the loop

153834 Two long conductors a, separated by a distance d carry current $I_{1}$ and $I_{2}$ in the same direction. They exert a force $F$ on each other. Now the current in one of them is increased to two times and its direction is reversed. The distance is also increased to $3 \mathrm{~d}$. The new value of the force between them is

153840 Two small magnets have their masses and lengths in the ratio $1: 2$. The maximum torques experienced by them in a uniform magnetic field are the same. For small oscillations, the ratio of their time periods is

153843 A rectangular coil of length $0.12 \mathrm{~m}$ and width $0.1 \mathrm{~m}$ having 50 turns of wire is suspended vertically in a uniform magnetic field of strength $0.2 \mathrm{~Wb} / \mathrm{m}^{2}$. The coil carries a current of $2 \mathrm{~A}$. If the plane of the coil is inclined at an angle of $30^{\circ}$ with the direction of the field, the torque required to keep the coil in stable equilibrium will be

153831 Two infinite straight wires $A$ and $B, 1 \mathrm{~m}$ apart are carrying currents of $I$ and $4 I$ respectively. The distance of the point at which the resultant force is zero is

153832 Four wires, each of length $2.0 \mathrm{~m}$, are bent into four loops $P . Q, R$ and $S$ and then suspended in a uniform magnetic field. If the same current is passed in each, then the torque will be maximum on the loop

153834 Two long conductors a, separated by a distance d carry current $I_{1}$ and $I_{2}$ in the same direction. They exert a force $F$ on each other. Now the current in one of them is increased to two times and its direction is reversed. The distance is also increased to $3 \mathrm{~d}$. The new value of the force between them is

153840 Two small magnets have their masses and lengths in the ratio $1: 2$. The maximum torques experienced by them in a uniform magnetic field are the same. For small oscillations, the ratio of their time periods is

153843 A rectangular coil of length $0.12 \mathrm{~m}$ and width $0.1 \mathrm{~m}$ having 50 turns of wire is suspended vertically in a uniform magnetic field of strength $0.2 \mathrm{~Wb} / \mathrm{m}^{2}$. The coil carries a current of $2 \mathrm{~A}$. If the plane of the coil is inclined at an angle of $30^{\circ}$ with the direction of the field, the torque required to keep the coil in stable equilibrium will be