Home
Class 12
PHYSICS
A boat is moving due east in a region wh...

A boat is moving due east in a region where the earth's magnetic field is `5.0 xx 10^(-5)NA^(-1)m^(-1)` due north and horizontal. The boat carries a vertical aerial 2 m long. If the speed of the boat is `1.50 m s^(-1)`, the magnitude of the induced emf in the wire of aerial is

A

0.50 mV

B

0.15 mV

C

1 mV

D

0.75 mV

Text Solution

Verified by Experts

The correct Answer is:
B

Induced emf `|epsi|=B_(H).l.v=5.0 xx 10^(-5) xx 2 xx 1.5=15 xx 10^(-5)V=0.15mV`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETICE INDUCTION

    U-LIKE SERIES|Exercise Fill in the blanks|15 Videos
  • ELECTROMAGNETICE INDUCTION

    U-LIKE SERIES|Exercise True Or False|10 Videos
  • ELECTROMAGNETICE INDUCTION

    U-LIKE SERIES|Exercise Case Based/Source-Based Integrated Questions|3 Videos
  • ELECTROMAGNETIC WAVES

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST (SECTION C)|1 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST|1 Videos

Similar Questions

Explore conceptually related problems

A boat is moving due east in a region where the earth's magnetic field is 5.0xx10^(-5) NA^(-1)m^(-1) due north and horizontal. The boat carries a vertical aerial 2 m long. If the speed of the boat is 1.50 ms^(-1) , the magnitude of the induced emf in the wire of aerial is

A boat is moving due east in a region where the earth's magnetic field is 5.0 x× 10^(–5) NA^(–1) m^(–1) due north and horizontal. The boat carries a vertical aerial 2 m long. If the speed of the boat is 1.50 ms^(–1) , the magnitude of the induced emf in the wire of aerial is:

A 10 m wire kept in east-west direction is falling with velocity 5 m/s perpendicular to the field 0.3xx10^(4)Wb//m^(2) due north and horizontal. The boat carried a vertical areal 2 m long. If the speed of the boat is 1.50ms^(-1) , then the magnitude of the induced emf in the wire of areal is

An airliner with a wingspan of 33.5 m travels toward the east at a speed of 280 m/s in a region where the Earth's magnetic field is 4.2 xx 10^(-5) T directed toward the north and 53° below horizontal. (a) What is the induced emf between the plane's wingtips? (b) Will a bulb glow if we connect the tip of wings by a conducting wire with a bulb in between?

A train is moving towards north with a speed of 25 m/s. if the vertical component of the earth's magnetic field is 0.2 xx 10^(-4) T, the emf induced in the axle 1.5 m long is

A train is moving towards north with a speed of 180 kilometre per hour. If the vertical comonent of the earth's magnetic field is 0.2xx10^(-4) T, the emf induced in the axle 1.5 m longs is -

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 ms^(-1) at right angle to the horizontal component of the Earth's magnetic field 0.3 xx 10 ^(-4)Wb m^(2) . (a) What is the instantaneous value of the emf induced in the wire? (b) What is the direction of the emf? (c) Which end of the wire is at the higher electrical potential?

A wire is moving with velocity 12xx10^(-2) m/s in a magnetic field of 0.5 T. if the induced emf is 9 mV, the length of wire is

A vertical metal rod of length 1.5 m is at rest in the earth's magnetic field of B_(H)=4xx10^(-5)T . If it starts moving at right angle to the magnetic meridian with a uniform acceleration of 5m//s^(2) , then the instantaneous emf induced in it at the end of 2 s will be

U-LIKE SERIES-ELECTROMAGNETICE INDUCTION-Multiple Choice Questions
  1. Eddy currents are produced, when

    Text Solution

    |

  2. A long solenoid has 500 turns. When a current of 2 A is passed through...

    Text Solution

    |

  3. A boat is moving due east in a region where the earth's magnetic field...

    Text Solution

    |

  4. A rectangular, a square, a circular and an elliptical loop, all in the...

    Text Solution

    |

  5. A solenoid is placed inside another solenoid, the length of both being...

    Text Solution

    |

  6. The magnetic flux through a circuit of resistance R changes by an amou...

    Text Solution

    |

  7. A copper ring is held horizontally and a bar magnet is dropped through...

    Text Solution

    |

  8. The direction of induced emf during electromagnetic induction is given...

    Text Solution

    |

  9. A coil having 500 square loops, each of side 10 cm, is placed normal t...

    Text Solution

    |

  10. The magnetic flux linked with a coil, in webers, is given by the equat...

    Text Solution

    |

  11. A coil having turns and resistance R is connected with a galvanometer ...

    Text Solution

    |

  12. An aeroplane, in which the distance between the tips of wings is 50 m,...

    Text Solution

    |

  13. A conducting square loop PQRS of side L and resistance R moves in its ...

    Text Solution

    |

  14. A conducting rod of length l is falling with a velocity v perpendicula...

    Text Solution

    |

  15. A coil of N turns and mean area A is rotating with uniform angular vel...

    Text Solution

    |

  16. A wheel with 10 metallic spokes, each 0.5 m long, is rotated with an a...

    Text Solution

    |

  17. When the number of turns in a coil is doubled without any change in th...

    Text Solution

    |

  18. A 50 mH coil carries a current of 2 A. The energy stored in the coil i...

    Text Solution

    |

  19. SI unit of inductance is

    Text Solution

    |

  20. The mutual inductance of a pair of coils is 5 H. In the primary coil c...

    Text Solution

    |