153298 Two long wires each parallel to the z-axis and each carrying current $I$, are at $(0,0,0)$ and $(a$, $b, 0)$. What is the force per unit length of each wire?

153300 Two concentric coils each of radius equal to $2 \pi$ $\mathrm{cm}$ are placed at right angles to each other. If $3 \mathrm{~A}$ and $4 \mathrm{~A}$ are the currents flowing through the two coils respectively. The magnetic induction (in $\mathrm{Wb} \mathrm{m}^{-2}$ ) at the centre of the coils will be:

153301 In the loop shown, the magnetic induction at the point $O$ is:

153303 Magnetic field at the centre of a circular coil of radius $R$ due to current $i$ flowing through it is $B$. The magnetic field at a point along the axis at distance $R$ from the centre is:

153304 A wire $P Q R$ is bent as shown in figure and is placed in a region of uniform magnetic field $B$. The length of $P Q=Q R=l$. A current $I$ ampere flows through the wire as shown. The magnitude of the force on $P Q$ and $Q R$ will be:

153298 Two long wires each parallel to the z-axis and each carrying current $I$, are at $(0,0,0)$ and $(a$, $b, 0)$. What is the force per unit length of each wire?

153300 Two concentric coils each of radius equal to $2 \pi$ $\mathrm{cm}$ are placed at right angles to each other. If $3 \mathrm{~A}$ and $4 \mathrm{~A}$ are the currents flowing through the two coils respectively. The magnetic induction (in $\mathrm{Wb} \mathrm{m}^{-2}$ ) at the centre of the coils will be:

153301 In the loop shown, the magnetic induction at the point $O$ is:

153303 Magnetic field at the centre of a circular coil of radius $R$ due to current $i$ flowing through it is $B$. The magnetic field at a point along the axis at distance $R$ from the centre is:

153304 A wire $P Q R$ is bent as shown in figure and is placed in a region of uniform magnetic field $B$. The length of $P Q=Q R=l$. A current $I$ ampere flows through the wire as shown. The magnitude of the force on $P Q$ and $Q R$ will be:

153298 Two long wires each parallel to the z-axis and each carrying current $I$, are at $(0,0,0)$ and $(a$, $b, 0)$. What is the force per unit length of each wire?

153300 Two concentric coils each of radius equal to $2 \pi$ $\mathrm{cm}$ are placed at right angles to each other. If $3 \mathrm{~A}$ and $4 \mathrm{~A}$ are the currents flowing through the two coils respectively. The magnetic induction (in $\mathrm{Wb} \mathrm{m}^{-2}$ ) at the centre of the coils will be:

153301 In the loop shown, the magnetic induction at the point $O$ is:

153303 Magnetic field at the centre of a circular coil of radius $R$ due to current $i$ flowing through it is $B$. The magnetic field at a point along the axis at distance $R$ from the centre is:

153304 A wire $P Q R$ is bent as shown in figure and is placed in a region of uniform magnetic field $B$. The length of $P Q=Q R=l$. A current $I$ ampere flows through the wire as shown. The magnitude of the force on $P Q$ and $Q R$ will be:

153298 Two long wires each parallel to the z-axis and each carrying current $I$, are at $(0,0,0)$ and $(a$, $b, 0)$. What is the force per unit length of each wire?

153300 Two concentric coils each of radius equal to $2 \pi$ $\mathrm{cm}$ are placed at right angles to each other. If $3 \mathrm{~A}$ and $4 \mathrm{~A}$ are the currents flowing through the two coils respectively. The magnetic induction (in $\mathrm{Wb} \mathrm{m}^{-2}$ ) at the centre of the coils will be:

153301 In the loop shown, the magnetic induction at the point $O$ is:

153303 Magnetic field at the centre of a circular coil of radius $R$ due to current $i$ flowing through it is $B$. The magnetic field at a point along the axis at distance $R$ from the centre is:

153304 A wire $P Q R$ is bent as shown in figure and is placed in a region of uniform magnetic field $B$. The length of $P Q=Q R=l$. A current $I$ ampere flows through the wire as shown. The magnitude of the force on $P Q$ and $Q R$ will be:

153298 Two long wires each parallel to the z-axis and each carrying current $I$, are at $(0,0,0)$ and $(a$, $b, 0)$. What is the force per unit length of each wire?

153300 Two concentric coils each of radius equal to $2 \pi$ $\mathrm{cm}$ are placed at right angles to each other. If $3 \mathrm{~A}$ and $4 \mathrm{~A}$ are the currents flowing through the two coils respectively. The magnetic induction (in $\mathrm{Wb} \mathrm{m}^{-2}$ ) at the centre of the coils will be:

153301 In the loop shown, the magnetic induction at the point $O$ is:

153303 Magnetic field at the centre of a circular coil of radius $R$ due to current $i$ flowing through it is $B$. The magnetic field at a point along the axis at distance $R$ from the centre is:

153304 A wire $P Q R$ is bent as shown in figure and is placed in a region of uniform magnetic field $B$. The length of $P Q=Q R=l$. A current $I$ ampere flows through the wire as shown. The magnitude of the force on $P Q$ and $Q R$ will be: