Home
Class 12
PHYSICS
Two resistance wires on joining in paral...

Two resistance wires on joining in parallel the resultant resistance is ohms `(6)/(5)` ohms. One of the wire breaks, the effective resistance is 2 ohms . The resistance of the broken wire is

A

`(3)/(5)` ohm

B

2 ohm

C

`(6)/(5)` ohm

D

3 ohm

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

When two resistance are connected in parallel then the equivalent resistance is (6)/(5)Omega When one of the resistance is removed then the effective resistance is 2Omega . The resistance of the wire removed will be

Two resistances are joined in parallel whose reusltant is 6//8 ohm . One of the resistance wire is broken and the effective resistance becomes 2 Omega . Then the resistance in ohm of the wire that got broken was

Two resistances are joined in parallel whose equivolent resistance is 3/5Omega . One of the resistance wire is broken and the effective resistance becomes 3Omega . The resistance (in ohms) of the wire that got broken was

Two resistances are joined in parallel of which equivalent resistance is 1.2 Omega . One of the resistance wire is broken and the effective resistance becomes 2 Omega , then the resistance of the wire that got broken was :

Resistance Ohm's law || Resistivity

Two resistors are connected (a) in series (b) in parallel The equivalent resistance in the two cases are 9 ohm and 2ohm respectively. Then the resistances of the component resistor are

ALLEN-CURRENT ELECTRICITY-All Questions
  1. Three resistance of values 2Omega,3Omega and 6Omega are to be connect...

    Text Solution

    |

  2. A battery of electro motive force E is connected in series with a resi...

    Text Solution

    |

  3. Two resistance wires on joining in parallel the resultant resistance i...

    Text Solution

    |

  4. The temperature coefficient of resistance of a wire is 0.00125 per .^...

    Text Solution

    |

  5. If specific resistance of a potentiometer wire is 10^(–7 ) Omega m, th...

    Text Solution

    |

  6. The resistance of each arm of the wheat stone bridge is 10Omega. A r...

    Text Solution

    |

  7. Copper and silicon is cooled from 300 K to 60 K, the specific resistan...

    Text Solution

    |

  8. There is a current of 40 ampere in a wire of 10^(-6)m^(2) are of cross...

    Text Solution

    |

  9. An ammeter and a voltmeter are joined in sereis to a cell. Their readi...

    Text Solution

    |

  10. By a cell a current of 0.9 A flows through 2 ohm resistor and 0.3 A th...

    Text Solution

    |

  11. Assertion : Current versus potential difference (i-V) graph for a cond...

    Text Solution

    |

  12. A galvanometer of resistance 100Omega gives full scale deflection for ...

    Text Solution

    |

  13. For changing the range of a galvanometer with G ohm resistance fromV v...

    Text Solution

    |

  14. The specific resistance of a conductor increases with:

    Text Solution

    |

  15. For a cell terminal potential difference is 2.2 V when circuit is open...

    Text Solution

    |

  16. N identical cells whether joined together in series or in parallel, gi...

    Text Solution

    |

  17. The potential difference between the points A and B in the following c...

    Text Solution

    |

  18. Length of a potentiometer wire is kept long and uniform to ahcieve:-

    Text Solution

    |

  19. Consider four circuits shown in the figure below. In which circuit pow...

    Text Solution

    |

  20. Find the equivalent resistance across AB :

    Text Solution

    |