Home
Class 12
PHYSICS
Two parallel resistors of 5 ohm nd 20 oh...

Two parallel resistors of 5 ohm nd 20 ohm are connected in left arm of a metre bridge. If the null point is at 40 cm from left end of the wire, calculate the value of resistance connected in right arm.

Promotional Banner

Topper's Solved these Questions

  • ELECTRICAL MEASUREMENTS

    MODERN PUBLICATION|Exercise EXERCISE|44 Videos
  • ELECTRIC POTENTIAL

    MODERN PUBLICATION|Exercise EXERCISE|38 Videos
  • ELECTROMAGNETIC INDUCTION

    MODERN PUBLICATION|Exercise EXERCISE|146 Videos

Similar Questions

Explore conceptually related problems

The resistance in the left gap of a metre bridge is 10Omega and the balance point is 40 cm from the left end. Calculate the value of unknown resistance.

The resistance in the left gap of a metre bridge is 10Omega and the balance point is 40 cm form the left end. Calculate the value of the unknown resistance.

When an unknown resistance and a resistance of 4Omega are connected in the left and right gaps of a meterbridge, the balance point is obtained at 50 cm. the shift in the balance point if a 4Omega resistance is now connected in parallel to the resistance in the right gap is

Two resistances are connected in the two gaps of a meter bridge. The balance point is 20 cm from the zero end. When a resistance 15 Omega is connected in series with the smaller of two resistance, the null point shifts to 40 cm. The smaller of the two resistance has the value.

In a metre bridge, the balancing length form the left end is focused to be 20 cm. The value of the unknown reistance is

4 resistance P= 5ohm, Q= 6 ohm,R=50 ohm & S= 60 ohm are connected in Four Arms of a wheatstone bridge. If a cell of EMF 1.5 v and negligible internal resistance is connected across the bridge, calculate he current in the arms of the Wheat stone bridge and the cell.

Two resistors of resistance 4 ohm and 12 ohm are connected in parallel. Calculate the values of effective resistance in each case.

Two resistors of resistance 4 ohm and 12 ohm are connected in series. Calculate the values of effective resistance in each case.

In a metre bridge, two unknown resistances R and X when connected in two gaps, give a null point at 40 cm from one end.What is the ratio of R and X ?

MODERN PUBLICATION-ELECTRICAL MEASUREMENTS-EXERCISE
  1. Two parallel resistors of 5 ohm nd 20 ohm are connected in left arm of...

    Text Solution

    |

  2. State and explain Kirchhoff's laws.

    Text Solution

    |

  3. State and explain Kirchhoff's laws.

    Text Solution

    |

  4. State and explain Kirchhoff's laws.

    Text Solution

    |

  5. Derieve condition of a balanced wheatstone's bridge.

    Text Solution

    |

  6. Using Kirchoff's law, derive the condition for the balance of a Wheats...

    Text Solution

    |

  7. Using Kirchoff's law, derive the condition for the balance of a Wheats...

    Text Solution

    |

  8. State Wheatstone bridge principle. Use kirchoff'slaws to obtain the re...

    Text Solution

    |

  9. State Wheatstone bridge principle. Use kirchoff'slaws to obtain the re...

    Text Solution

    |

  10. Draw the circuit diagram of Wheatstone bridge. Under what condtion, no...

    Text Solution

    |

  11. Draw the circuit diagram of Wheatstone bridge. Under what condtion, no...

    Text Solution

    |

  12. With help of circuit diagram, explain how a meter bridge can be used t...

    Text Solution

    |

  13. Explain the principle of Wheatstone bridge for determining and unknown...

    Text Solution

    |

  14. What is a slide wire bridge? How can you find unknown resistance by it...

    Text Solution

    |

  15. With help of circuit diagram, explain how a meter bridge can be used t...

    Text Solution

    |

  16. Draw a circuit diagram for determining the unknown resistance R using ...

    Text Solution

    |

  17. Draw a circuit diagram of a meter bridge and write the necessary mathe...

    Text Solution

    |

  18. Draw a cricuit diagram of a metre bridge arranged to find the value of...

    Text Solution

    |

  19. Draw a cricuit diagram of a metre bridge arranged to find the value of...

    Text Solution

    |

  20. Draw a neatly labelled diagram of a potentionmeter and explain its pri...

    Text Solution

    |

  21. Explain the principle on which the working of a potentiometer is based...

    Text Solution

    |