Home
Class 9
MATHS
A rectangular wire of length 18 cm and b...

A rectangular wire of length 18 cm and breadth 15 cm is bent into a circular wire. Then find the radius of this circular wire.

Promotional Banner

Topper's Solved these Questions

  • CIRCUMFERENCE OF CIRCLES

    CALCUTTA BOOK HOUSE|Exercise EXERCISE-2|18 Videos

  • AREA OF TRIANGLES

    CALCUTTA BOOK HOUSE|Exercise EXERCISE-3 (Short-answer type question :)|5 Videos

  • CONSTRUCTION DRAWING OF PARALLELOGRAMS EQUAL TO THE AREA OF A GIVEN TRIANGLE

    CALCUTTA BOOK HOUSE|Exercise EXERCISE - 5|10 Videos

Similar Questions

Explore conceptually related problems

A rectangular loop of metallic wire of length a and breadth b carries a currnet I. Find the magnitude of the magnetic field at the centre of the loop.

If the length of a half circular area is 36 cm ,then find the diameter of the circular area.

A rectangular loop of metallic wire is of length a and breadth b and carries a current I. Find the magnitude of the magnetic field at the centre O of the loop.

Moment of inertia of a circular wire of mass m and radius r about its diameter is

The current through the wire is 10 A as shown in figure below. Find magnetic field intensity at the point O of the circular part. The radius of the circular part is 3 cm.

Two wires X and Y have same length of 44 cm and carry a current of 10A each. Wire X is bent into a circle and wire Y is bent into a square. Obtain the magnitudes of the magnetic fields at their centres.

An electric current is flowing in a circular wire of radius a. At what distance from the centre on the axis of the circular wire will the magnetic field be 1/8th of its value at the centre?

CALCUTTA BOOK HOUSE-CIRCUMFERENCE OF CIRCLES-EXERCISE-2
  1. A rectangular wire of length 18 cm and breadth 15 cm is bent into a ci...

    Text Solution

    |

  2. A horse travelled a circular field in 1(1)/(2) minutes at a speed of 6...

    Text Solution

    |

  3. The diameter of a circular wire is 5 dcm 6 cm. If the wire be bented i...

    Text Solution

    |

  4. If the radius of a circle be increased by 3 times, then how many times...

    Text Solution

    |

  5. If the area of square between a circular and a square field of equal p...

    Text Solution

    |

  6. If the radius of a circle be increased by 75%, then the change of its ...

    Text Solution

    |

  7. The breadth of a ractangle is 44 m, its length is 2(1)/(2) times of it...

    Text Solution

    |

  8. The difference of the circumference of a circle and its radius is 74 c...

    Text Solution

    |

  9. The sum of the length of the circumference of a semi-circular bow and ...

    Text Solution

    |

  10. A well is drugged on a square field of side 4.2 m. Find the expenditur...

    Text Solution

    |

  11. The time required to travel a circular field along its diameter is 30 ...

    Text Solution

    |

  12. There is a path around a circular garden. The outer circumference of t...

    Text Solution

    |

  13. The difference of the circumference of two circles is 22 m and the sum...

    Text Solution

    |

  14. The circumference of a circle is 1(1)/(2) times of another circle and ...

    Text Solution

    |

  15. The wheel of a vehicle revolves at a rate of 500 times per minute. If ...

    Text Solution

    |

  16. Two hands of a clock are of length 5 cm and 4 cm. How more distance th...

    Text Solution

    |

  17. The circumference of the outer edge of a path which is around a circul...

    Text Solution

    |

  18. The times required to travel a circular path of breadth 8 m along the ...

    Text Solution

    |

  19. The radius of the front wheel of an engine is 35 cm and the radius of ...

    Text Solution

    |