Home
Class 12
PHYSICS
The ratio of three resistances is 1:2:3 ...

The ratio of three resistances is `1:2:3` if the greatest resistance be 12 ohm then what will be the equivalent resistance of the three resistances in their (i) series combination and (ii) Parallel combination?

Text Solution

Verified by Experts

The correct Answer is:
(i) `24 Omega` (ii) `24/11 Omega`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise EXERCISE ( PROBLEM SET-II)|25 Videos

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise EXERCISE ( HOT NUMERICAL PROBLEMS)|5 Videos

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise EXERCISE ( SHORT ANSWER TYPE QUESTION-II)|7 Videos

  • COMMUNICATION STSTEM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|28 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|27 Videos

Similar Questions

Explore conceptually related problems

Calculate the equivalent resistance when a wire of resistace 10 ohm is divided in two equal parts and connected in parallel combination.

Combination of resistance, equivalent resistance series and parallel combination.

Show that the equivalent resistance of a series combination is greater than every individual resistance of that combination.

Three resistances each of 4 ohm are connected to from an equilateral triangle The equivalent resistance between any two corner is

rho_1 and rho_2 are the resistivities of the materials of two wires of the same dimensions, what will be the equivalent resistvity of the series combination of the two wires?

A network of resistances is connected to a 16V battery with internal resistance of 1 Omega as shown in Fig. Compute the equivalent resistance of the network

What percent will be the equivalent resistance of two resistances 2 Omega and 3 Omega in their parallel combination with respect to their equivalent resistance in series combination?

Show that the equivalent resistance of a parallel combination is less than every individual resistance of that combination.

CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( PROBLEM SET-I)
  1. With two resistances 2 Omega and 3 Omega In parallel a third resistanc...

    Text Solution

    |

  2. Equivalent resistances of two resistors in their series and parallel c...

    Text Solution

    |

  3. The equivalent resistances of two resistances in parallel combination ...

    Text Solution

    |

  4. There are 14 resistances each of magnitude 1 Omega. Keeping three of t...

    Text Solution

    |

  5. The resistance of an electrical appliance is 200 Omega and it can with...

    Text Solution

    |

  6. The ratio of three resistances is 1:2:3 if the greatest resistance be ...

    Text Solution

    |

  7. Emf of an electric cell is 2.1 V and its internal resistance is 0.1 Om...

    Text Solution

    |

  8. Emf of an electric cell is 1.5 V and its internal resistance Is 2 Omeg...

    Text Solution

    |

  9. A cell of emf 2.1 V and 0.1 Omega internal resistance sends 100 mA cur...

    Text Solution

    |

  10. Electric current is sent through a resistance of 20 Omega from a batte...

    Text Solution

    |

  11. Internal resistance of an electric cell is 1 Omega. Error is incurred ...

    Text Solution

    |

  12. Current is sent from an electric cell of emf 30 V and of negligible in...

    Text Solution

    |

  13. An electric cell of emf 2V and of negligible internal resistance is co...

    Text Solution

    |

  14. Internal resistance of each of 30 identical cells is 3Omega. To get th...

    Text Solution

    |

  15. Emf of each of 15 cells is 2V and internal resistance of each is 0.1 O...

    Text Solution

    |

  16. 5 electric cells are connected in series .Emf of each cell is 1.5 V an...

    Text Solution

    |

  17. When a resistance of 4.5 Omega is connected with 10 identical cells in...

    Text Solution

    |

  18. Calculate the number of electrons crossing a given cross section in 1 ...

    Text Solution

    |

  19. The number of free electrons per unit volume in a metallic conductor i...

    Text Solution

    |

  20. Estimate the average drift speed of conduction electrons in a copper w...

    Text Solution

    |