Home
Class 14
MATHS
The resistance of wire is directly propr...

The resistance of wire is directly proprtional to its length and inversely proportional to the square of its radius .Two wires of same meterial having the same resistance and their radii are in the ratio `9:8` .If the length of the first wiere is 162 cm then , find the length of the other wire .

A

125 cm

B

128 cm

C

138 cm

D

118 cm

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • RATIO

    MOTHERS|Exercise Ratio Merge Tricks|15 Videos

  • SIMPLE & COMPOUND INTEREST

    MOTHERS|Exercise SSG CPO EXAMS, 2018, EXAM DATE: 11 JULY 2019 SHIFT III|1 Videos

Similar Questions

Explore conceptually related problems

The resistance of a wire is directly proportional to its length and inversely proportional to the square of its radius.Two wire of the same material l have the same resistance and their radii are in the ratio of 9:8. If the length of the first ire is 162cm, find the length of the other wire.

Two wires made of same material have lengths in the ratio 1:2 and their volumes in the same ratio. The ratio of their resistances is

Two wires A and B of the same material have their lengths in the ratio 1 : 5 and diameters in the ratio 3 : 2 . If the resistance of the wire B is 180 Omega , find the resistance of the wire A.

Two wires A and B of the same material have their lengths in the ratio 5: 3 and diameter in the radius 2:3 . If the resistance of wire A is 15 Omega . find the resistance of wire B

Two wire of the same material and length stretched by the same force. If the ratio of the radii of the two wires is n : 1 then the ratio of their elongations is

Two wires A and B of same material have radii in the ratio 2:1 and lengths in the ratio 4:1 . The ratio of the normal forces required to produce the same change in the lengths of these two wires is

MOTHERS-RATIO & PROPORTION -Multiple Choice Question
  1. A heart is broken is number of feeling 1:2:3:4 .The cost heart is dire...

    Text Solution

    |

  2. The cost of the plyboard varies directly with square of its weight are...

    Text Solution

    |

  3. The resistance of wire is directly proprtional to its length and inver...

    Text Solution

    |

  4. Speed of train is inversaly proportional to the square root of time to...

    Text Solution

    |

  5. If a sum of Rs. 1,170 were distributed among A,B and C in the ratio 2:...

    Text Solution

    |

  6. Rs. 555 was to be divided among A,B and C in the ratio of (1)/(4):(1)/...

    Text Solution

    |

  7. Rs. 1320 should be distributed into three person A,B&C in the ratio of...

    Text Solution

    |

  8. A boy and a girl play with pencil .Girl break pencil into two part .Bo...

    Text Solution

    |

  9. A policeman starts to chase a theif .when the thief goes 10 steps the ...

    Text Solution

    |

  10. A dog starts chasing a rabbit as long as the rabbit moves 9 steps in a...

    Text Solution

    |

  11. A dog takes 7 jumps for every 10 jumps of the loin and a fox takes 12 ...

    Text Solution

    |

  12. There are 3 types of expenditure in a car . 1st raw material ,2nd labo...

    Text Solution

    |

  13. In Maa Yatri Temple very dovotee offers fruits to the orphans Thus eve...

    Text Solution

    |

  14. Two candles of the same height are lighted at the same time the first...

    Text Solution

    |

  15. There are officer and Assistant in an office .If 15 Assistab=nt went o...

    Text Solution

    |

  16. In an examination, the number of those who passed and the number of th...

    Text Solution

    |

  17. In an examination, the number of those who passed and the number of th...

    Text Solution

    |

  18. The total number of students in a school was 660 .the ratio of number ...

    Text Solution

    |

  19. In a school there were 1554 students and the ratio of the number of th...

    Text Solution

    |

  20. In a school , the number of boys and girls are in Ratio 5:3 Some new b...

    Text Solution

    |