02. Motional Electromotive Force (MEF)
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Electro Magnetic Induction

154710 A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced emf is

1 once per revolution
2 twice per revolution
3 four times per revolution
4 six times per revolution
NEET- 2013
Electro Magnetic Induction

154714 A rectangular, a square, a circular and an elliptical loop, all in the $(x-y)$ plane, are moving out of a uniform magnetic field with a constant velocity, $V=\vec{v} \hat{i}$. The magnetic field is directed along the negative $\mathrm{z}$-axis direction. The induced emf, during the passage of these loops, out of the field region, will no remain constant for

1 the rectangular, circular and elliptical loops
2 the circular and the elliptical loops
3 only the elliptical loop
4 any of the four loops
AIPMT- 2009
Electro Magnetic Induction

154720 A conducting wire is moving towards right in a magnetic field $B$. The direction of induced current in the wire is shown in the figure. The direction of magnetic field will be

1 in the plane of paper pointing towards right
2 in the plane of paper pointing towards left
3 perpendicular to the plane of paper and downwards
4 perpendicular to the plane of paper and upwards
Manipal UGET-2011
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Electro Magnetic Induction

154710 A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced emf is

1 once per revolution
2 twice per revolution
3 four times per revolution
4 six times per revolution
NEET- 2013
Electro Magnetic Induction

154714 A rectangular, a square, a circular and an elliptical loop, all in the $(x-y)$ plane, are moving out of a uniform magnetic field with a constant velocity, $V=\vec{v} \hat{i}$. The magnetic field is directed along the negative $\mathrm{z}$-axis direction. The induced emf, during the passage of these loops, out of the field region, will no remain constant for

1 the rectangular, circular and elliptical loops
2 the circular and the elliptical loops
3 only the elliptical loop
4 any of the four loops
AIPMT- 2009
Electro Magnetic Induction

154720 A conducting wire is moving towards right in a magnetic field $B$. The direction of induced current in the wire is shown in the figure. The direction of magnetic field will be

1 in the plane of paper pointing towards right
2 in the plane of paper pointing towards left
3 perpendicular to the plane of paper and downwards
4 perpendicular to the plane of paper and upwards
Manipal UGET-2011
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Electro Magnetic Induction

154710 A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced emf is

1 once per revolution
2 twice per revolution
3 four times per revolution
4 six times per revolution
NEET- 2013
Electro Magnetic Induction

154714 A rectangular, a square, a circular and an elliptical loop, all in the $(x-y)$ plane, are moving out of a uniform magnetic field with a constant velocity, $V=\vec{v} \hat{i}$. The magnetic field is directed along the negative $\mathrm{z}$-axis direction. The induced emf, during the passage of these loops, out of the field region, will no remain constant for

1 the rectangular, circular and elliptical loops
2 the circular and the elliptical loops
3 only the elliptical loop
4 any of the four loops
AIPMT- 2009
Electro Magnetic Induction

154720 A conducting wire is moving towards right in a magnetic field $B$. The direction of induced current in the wire is shown in the figure. The direction of magnetic field will be

1 in the plane of paper pointing towards right
2 in the plane of paper pointing towards left
3 perpendicular to the plane of paper and downwards
4 perpendicular to the plane of paper and upwards
Manipal UGET-2011
For More Updates join with Us