Home
Class 12
PHYSICS
A coil having 500 square loops each of s...

A coil having `500` square loops each of side `10 cm` is placed normal to a magnetic flux which increase at the rate of `1.0 "tesla"/"second"`. The induced r.m.f. in volts is

A

0.1 V

B

5.0 V

C

0.5 V

D

1.0 V

Text Solution

Verified by Experts

The correct Answer is:
B
`e=(d phi)/(dt)=(d)/(dt)(NBA)=NA(dB)/(dt)=500xx10^(-2)xx1=5.0V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    DISHA PUBLICATION|Exercise EXERCISE - 2 : Concept Applicator|29 Videos

  • ELECTROMAGNETIC INDUCTION

    DISHA PUBLICATION|Exercise EXERCISE - 2 : Concept Applicator|29 Videos

  • ELECTRIC CHARGES AND FIELDS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept applicator|24 Videos

  • ELECTROMAGNETIC WAVES

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept Applicator|30 Videos

Similar Questions

Explore conceptually related problems

The magnetic flux through a 50-turn coil increase at the rate of 0.05 Wb/s. What is the induced emf between the ends of the coil ?

A coil having an area of 3m^(2) is placed in a magnetic field which changes from a 9 Wb//m^(2) to 5Wb//m^(2) in three seconds. The e.m.f. Induced in the coil is

A 50 turns circular coil has a radius of 3cm , it is kept in a magnetic field acting normal to the area of the coil. The magnetic field B increased from 0.10 tesla to 0.35 tesla in 2 milliseconds . The average induced e.m.f. in the coil is

A square loop of side 22cm is converted into circular loop in 0.4s . A uniform magnetic field of 0.2T directed normal to the loop, then the induced in the loop is

A coil having an area of 2m^(2) is placed in a magnetic field which changes from 2 Wb//m^(2) to 5Wb//m^(2) in 3 seconds. The e.m.f. Induced in the coil is

A square wire loop of side 30cm & wire cross section having diameter 4mm is placed perpendicular to a magnetic field changing at the rate 0.2 T/s. Final induced current in the wire loop. (Given: Resistivity of wire material is (1.23xx10^(-8) ohm m)

A conduction circular loop is placed in a uniform magnetic field 0.02T with its place normal to the field . The radius of loop starts shrinking at a rate of 1.0 mm//sec . Then induced emf in the loop at an instant when the radius is 2 cm :-

A conducting square loop of side 10 cm is placed in a region of uniform magnetic field 0.5 T as shown in the figure. Calculate the work done in slowly moving the loop out of the field in 2 seconds with a speed of 0.05 m s^(-1) . The resistance of loop is 10 Omega .

DISHA PUBLICATION-ELECTROMAGNETIC INDUCTION -EXERCISE - 1 : Concept Builder
  1. A coil having 500 square loops each of side 10 cm is placed normal to ...

    Text Solution

    |

  2. A metal ring is held horizontally and bar magnet is dropped through th...

    Text Solution

    |

  3. Two identical coils, each carrying the same current l in the clockwise...

    Text Solution

    |

  4. A rectangular coil of 20 turns and area of cross-section 25 cm^(2) has...

    Text Solution

    |

  5. If the current increases from zero to 1A in 0.1 s in a coil of 5 mH th...

    Text Solution

    |

  6. A coil of insulated wire is connected to a battery. If it is connected...

    Text Solution

    |

  7. The magnetic flux (in weber) linked with a coil of resistance 10 Omega...

    Text Solution

    |

  8. Two different wire loops are concentric and lie in the same plane. The...

    Text Solution

    |

  9. A coil of area 100 cm^(2) having 50turns is perpendicular to a magneti...

    Text Solution

    |

  10. Two identical circular loops of metal wire are lying on a table withou...

    Text Solution

    |

  11. Consider the situation shown in figure. If the switch is closed and af...

    Text Solution

    |

  12. A magnetic field of 2xx10^(-2)T acts at right angles to a coil of area...

    Text Solution

    |

  13. A rectangular coil of 100 turns and size 0.1mxx0.05m is placed perpend...

    Text Solution

    |

  14. the inductance of a closed-packed coil of 400 turns is 8mH. A current ...

    Text Solution

    |

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

    Text Solution

    |

  16. A conducting wire frame is placed in a magnetic field which is directe...

    Text Solution

    |

  17. A coil having an area A(0) is placed in a magnetic field which changes...

    Text Solution

    |

  18. A horizontal telegraph wire 0.5 km long runing east and west in a part...

    Text Solution

    |

  19. A coil having n turns and resistance R Omega is connected with a galva...

    Text Solution

    |

  20. Two coils X and Y are linked such that emf E is induced in Y when the ...

    Text Solution

    |