Questions tagged 'Motional EMF'

• A rectangular coil ABCD is rotated anticlockwise with a uniform angular velocity about the axis shown in diagram below. The axis of rotation of the coil as well as the magnetic field B are horizontal. The induced e.m.f. in the coil would be maximum when
  Category: emi | Tags: Motional EMF
• A 10 metre wire kept in east-west falling with velocity $5 m/sec$ perpendicular to the field $0.3 imes {10^{ - 4}}Wb/{m^2}$. The induced e.m.f. across the terminal will be
  Category: emi | Tags: Motional EMF
• An electric potential difference will be induced between the ends of the conductor shown in the diagram, when the conductor moves in the direction
  Category: emi | Tags: Motional EMF
• Two rails of a railway track insulated from each other and the ground are connected to a milli voltmeter. What is the reading of voltmeter, when a train travels with a speed of 180 km/hr along the track. Given that the vertical component of earth's magnetic field is $0.2 \times {10^{ - 4}}weber/{m^2}$ and the rails are separated by 1 metre
  Category: emi | Tags: Motional EMF
• A conductor of 3 m in length is moving perpendicularly to magnetic field of ${10^{ - 3}}$ tesla with the speed of ${10^2}m/s$, then the e.m.f. produced across the ends of conductor will be
  Category: emi | Tags: Motional EMF
• When a wire loop is rotated in a magnetic field, the direction of induced e.m.f. changes once in each
  Category: emi | Tags: Motional EMF
• An aeroplane in which the distance between the tips of wings is 50 m is flying horizontally with a speed of 360 km/hr over a place where the vertical components of earth magnetic field is $2.0 \times {10^{ - 4}}weber/{m^2}$. The potential difference between the tips of wings would be
  Category: emi | Tags: Motional EMF
• A copper disc of radius 0.1 m is rotated about its centre with 10 revolutions per second in a uniform magnetic field of 0.1 Tesla with its plane perpendicular to the field. The e.m.f. induced across the radius of disc is
  Category: emi | Tags: Motional EMF
• A metal conductor of length 1m rotates vertically about one of its ends at angular velocity 5 radians per second. If the horizontal component of earth's magnetic field is $0.2 \times {10^{ - 4}}T$, then the e.m.f. developed between the two ends of the conductor is
  Category: emi | Tags: Motional EMF
• A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B constant in time and space, pointing perpendicular and into the plane of the loop exists everywhere. The current induced in the loop is
  Category: emi | Tags: Motional EMF

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