Home
Class 12
PHYSICS
In meter bridge , the balancing length f...

In meter bridge , the balancing length from left is found to be 20 cm when standard connected of `1 Omega` is in right gap . The value of unknown resistance is

A

`0.8 Omega`

B

`0.5Omega`

C

`0.4 Omega`

D

`0.25 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ERRORLESS |Exercise Kirchhoff s Law, cells|8 Videos

  • CURRENT ELECTRICITY

    ERRORLESS |Exercise Different Measuring Instruments|1 Videos

  • COMMUNICATION SYSTEM

    ERRORLESS |Exercise S E T|14 Videos

  • ELECTRO MAGNETIC INDUCTION

    ERRORLESS |Exercise SET|20 Videos

Similar Questions

Explore conceptually related problems

In a metre bridge , the balancing length from the left end is found to be 40cm, when a known resistance of 3Omega is placed in the right gap, then the value of unknown resistance is

In a metre bridge experiment, the balancing length from the left end is found to be 20 cm. If a standard resistance of 20 ohm is kept in the right gap, then the value of the unknown resistance in the left gap is

In a metere bridge, the balance length from left end (standard resistance of 1Omega is in the right gap) is found to be 20 cm, the length of resistance wire in left gap) is found to be 20 cm the length of resistance wire in left gap is (1)/(2) m and radius is 2mm its specific resistance is

In the metre bridge, the balancing length AB = 20 cm. The unknown resistance X is equal to

(i) In a meter bridge , the balance point is found to be at 30 cm from the end A when resistance R in left gap of bridge is of 12 Omega . Find resistance S in the right gap of bridge (ii) If the cell and the galvanometer are interchanged in the balance point, would it effect flow of current through the galvanometer (iii) Calculate the balance point of the bridge if R and S are interchanged

When an unknown resistance and a resistance 6Omega are connected in the left and right gaps of a meter bridge the balance point is obtained at 50 cm. if 3Omega resistance is connected in parallel to resistance in right gap, the balance point is

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

ERRORLESS -CURRENT ELECTRICITY-Self Evaluation Test -19
  1. In meter bridge , the balancing length from left is found to be 20 cm ...

    Text Solution

    |

  2. Figure 6.51 shows a simple a potentiometer circuit for measuring a sma...

    Text Solution

    |

  3. A car has a fresh storage battery of emf 12 V and internal resistance ...

    Text Solution

    |

  4. If the balance point is obtained at the 35th cm in a metre bridge the ...

    Text Solution

    |

  5. The equivalent resistance across the terminals of source of e.m.f. 24 ...

    Text Solution

    |

  6. In the circuit shown in figure, switch S is initially closed and S i...

    Text Solution

    |

  7. The figure here shows a portion of a circuit. What are the magnitude a...

    Text Solution

    |

  8. A carbon resistor has colour strips as violet, yellow brown and golden...

    Text Solution

    |

  9. A voltmeter of resistance 1000 Omega is connected across a resistance ...

    Text Solution

    |

  10. A beam contains 2 xx 10^(8) doubly charged positive ions per cubic cen...

    Text Solution

    |

  11. In the circuit shown, the reading of ammeter when switch S is open ...

    Text Solution

    |

  12. In the circuit as shown in figure the

    Text Solution

    |

  13. In figure shows a rectangular block with dimensions x , 2 x and 4 x ....

    Text Solution

    |

  14. A battery is connected to a uniform resistance wire AB and B is eart...

    Text Solution

    |

  15. A cylindrical metal wire of length l and cross sections area S , has...

    Text Solution

    |

  16. A potential divider is used to give outputs of 4 V and 8 V from a 12 V...

    Text Solution

    |

  17. Find equivalent resistance between A and B

    Text Solution

    |

  18. Following figures show four situations in which positive and negative ...

    Text Solution

    |

  19. A and B are two square plates of same metal and same thickness but len...

    Text Solution

    |

  20. A moving coil galvanometer is converted into an ammeter reads upto 0.0...

    Text Solution

    |

  21. Two conductors are made of the same material and have the same length....

    Text Solution

    |