Home
Class 12
PHYSICS
When n wires which are identical are con...

When `n` wires which are identical are connected in series, the effective resistance exceeds that when they are in parallel by `(X)/(Y)Omega`. Then the resistance of each wire is

A

`(xn)/(y(n^(2)-1))`

B

`(yn)/(x(n^(2)-1))`

C

`(xn)/(y(n-1))`

D

`(yn)/(x(n-1))`

Text Solution

Verified by Experts

The correct Answer is:
A
`R_(S)=R_(p)+((X)/(Y))`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 3|46 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise NCERT Based Questions|13 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 2 C.W|59 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(H.W)|25 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise ASSERTION AND REASON|15 Videos

Similar Questions

Explore conceptually related problems

When resistors 1 and 2 are connected in series, the equivalent resistance is 20.0 Omega. When they are connected in parallel, the equivalent resistance is 3.75 Omega. What are (a) the smaller resistance and (b) the larger resistance of these two resistors?

A set of n identical resistors, each of resistance R Omega , when connected in series have an effective resistance X Omega and when the resistors are connected in parallel, their effective resistance is Y Omega . Find the relation between R, X and Y.

Two wires of resistance 10 Omega and 5 Omega are connected in series. The effective resistance is "__________" Omega .

The Total resistance when connected in series in 9 Omega and when connected in parallel is 2 Omega The value of two resistance are

A set of 'n' identical resistors, each of resistance 'R' when connected in series have an effective resistance 'X'. When they are connected in parallel, their effective becomes 'Y'. Find out the product of X and Y.

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 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 :

NARAYNA-CURRENT ELECTRICITY-Level 2 H.W
  1. If the resistance of a circuit having 12 V source is increased by 4Ome...

    Text Solution

    |

  2. An electric current is passed through a circuit containing two wires o...

    Text Solution

    |

  3. When n wires which are identical are connected in series, the effectiv...

    Text Solution

    |

  4. The equivalent resistance across A and B is

    Text Solution

    |

  5. An ammeter A is connected as shown in the diagram. Ammeter reading is

    Text Solution

    |

  6. A current of 7 A flows through the circuit as shown in the figure the ...

    Text Solution

    |

  7. If a copper wire is stretched to make it 0.1% longer wha is the percen...

    Text Solution

    |

  8. Two resistance R(1) and R(2) when connected in series and parallel wit...

    Text Solution

    |

  9. Two identical electric lamps marked 500 W, 220 V are connected in seri...

    Text Solution

    |

  10. A conductor of resistance 3 ohm is stretched uniformly till its length...

    Text Solution

    |

  11. Ten 50W bulbs are operated for 10 hours per day. The energy consumed i...

    Text Solution

    |

  12. Two electic bulbs marked 25 W -220 V and 100 W - 220 V are connected i...

    Text Solution

    |

  13. Two batteries of different emf and internal resistances connected in s...

    Text Solution

    |

  14. The pd across terminals of a cell is found to be 29 volt and 28 volt r...

    Text Solution

    |

  15. The current in a circuit containing a battery connected to 2Omega resi...

    Text Solution

    |

  16. The potential difference across te terminals of a battery is 10 V when...

    Text Solution

    |

  17. Two cells of emf 3V and 5V and internal resistance r(1) and r(2) respe...

    Text Solution

    |

  18. A battery when connected by resistance of 16Omega gives a terminal vo...

    Text Solution

    |

  19. When a resistor of 11 Omega is connected in series with an electric ce...

    Text Solution

    |

  20. Two cells of emf 4 V and 8 V are connected to two resistor 4Omega and ...

    Text Solution

    |