154672 A metal rod $A B$ of length $50 \mathrm{~cm}$ is moving at a velocity $8 \mathrm{~ms}^{-1}$ in a magnetic field of $2 \mathrm{~T}$. If the field is at $60^{\circ}$ with the plane of motion as shown in figure, then the potentials $V_{A}$ and $V_{B}$ are related by

154673 A wheel of radius $2 \mathrm{~m}$ having 8 conducting concentric spokes is rotating about its geometrical axis with an angular velocity of 10 $\mathrm{rad} / \mathrm{s}$ in a uniform magnetic field of $0.2 \mathrm{~T}$ perpendiculars to its plane. The value of induced emf between the rim of the wheel and centre is V.

154674 A rod of length $80 \mathrm{~cm}$ rotates about its mid point with a frequency of $10 \mathrm{rev} / \mathrm{s}$. The potential difference (in Volts) between two ends of the rod due to a magnetic field, $B=0.5 \mathrm{~T}$ directed perpendicular to the rod is

154675 A conducting wire bent but in the shape of semicircle has length $L$ and moves in its plane with constant velocity $v$. A uniform magnetic field $B$ exists in the direction perpendicular to the plane of the wire. The velocity makes an angles $45^{\circ}$ to the diameter joining free ends and the emf induced between the ends of the wire is $\Phi=\alpha(B v L)$. The value of constant $\alpha$ is

154672 A metal rod $A B$ of length $50 \mathrm{~cm}$ is moving at a velocity $8 \mathrm{~ms}^{-1}$ in a magnetic field of $2 \mathrm{~T}$. If the field is at $60^{\circ}$ with the plane of motion as shown in figure, then the potentials $V_{A}$ and $V_{B}$ are related by

154673 A wheel of radius $2 \mathrm{~m}$ having 8 conducting concentric spokes is rotating about its geometrical axis with an angular velocity of 10 $\mathrm{rad} / \mathrm{s}$ in a uniform magnetic field of $0.2 \mathrm{~T}$ perpendiculars to its plane. The value of induced emf between the rim of the wheel and centre is V.

154674 A rod of length $80 \mathrm{~cm}$ rotates about its mid point with a frequency of $10 \mathrm{rev} / \mathrm{s}$. The potential difference (in Volts) between two ends of the rod due to a magnetic field, $B=0.5 \mathrm{~T}$ directed perpendicular to the rod is

154675 A conducting wire bent but in the shape of semicircle has length $L$ and moves in its plane with constant velocity $v$. A uniform magnetic field $B$ exists in the direction perpendicular to the plane of the wire. The velocity makes an angles $45^{\circ}$ to the diameter joining free ends and the emf induced between the ends of the wire is $\Phi=\alpha(B v L)$. The value of constant $\alpha$ is

154672 A metal rod $A B$ of length $50 \mathrm{~cm}$ is moving at a velocity $8 \mathrm{~ms}^{-1}$ in a magnetic field of $2 \mathrm{~T}$. If the field is at $60^{\circ}$ with the plane of motion as shown in figure, then the potentials $V_{A}$ and $V_{B}$ are related by

154673 A wheel of radius $2 \mathrm{~m}$ having 8 conducting concentric spokes is rotating about its geometrical axis with an angular velocity of 10 $\mathrm{rad} / \mathrm{s}$ in a uniform magnetic field of $0.2 \mathrm{~T}$ perpendiculars to its plane. The value of induced emf between the rim of the wheel and centre is V.

154674 A rod of length $80 \mathrm{~cm}$ rotates about its mid point with a frequency of $10 \mathrm{rev} / \mathrm{s}$. The potential difference (in Volts) between two ends of the rod due to a magnetic field, $B=0.5 \mathrm{~T}$ directed perpendicular to the rod is

154675 A conducting wire bent but in the shape of semicircle has length $L$ and moves in its plane with constant velocity $v$. A uniform magnetic field $B$ exists in the direction perpendicular to the plane of the wire. The velocity makes an angles $45^{\circ}$ to the diameter joining free ends and the emf induced between the ends of the wire is $\Phi=\alpha(B v L)$. The value of constant $\alpha$ is

154672 A metal rod $A B$ of length $50 \mathrm{~cm}$ is moving at a velocity $8 \mathrm{~ms}^{-1}$ in a magnetic field of $2 \mathrm{~T}$. If the field is at $60^{\circ}$ with the plane of motion as shown in figure, then the potentials $V_{A}$ and $V_{B}$ are related by

154673 A wheel of radius $2 \mathrm{~m}$ having 8 conducting concentric spokes is rotating about its geometrical axis with an angular velocity of 10 $\mathrm{rad} / \mathrm{s}$ in a uniform magnetic field of $0.2 \mathrm{~T}$ perpendiculars to its plane. The value of induced emf between the rim of the wheel and centre is V.

154674 A rod of length $80 \mathrm{~cm}$ rotates about its mid point with a frequency of $10 \mathrm{rev} / \mathrm{s}$. The potential difference (in Volts) between two ends of the rod due to a magnetic field, $B=0.5 \mathrm{~T}$ directed perpendicular to the rod is

154675 A conducting wire bent but in the shape of semicircle has length $L$ and moves in its plane with constant velocity $v$. A uniform magnetic field $B$ exists in the direction perpendicular to the plane of the wire. The velocity makes an angles $45^{\circ}$ to the diameter joining free ends and the emf induced between the ends of the wire is $\Phi=\alpha(B v L)$. The value of constant $\alpha$ is