Home
Class 12
PHYSICS
The resistance in the two arms of the me...

The resistance in the two arms of the meter bridge are `5 Omega` and `R Omega`, respectively. When the resistance `R` is shunted with an equal resistance, the new balance point is `1.6 l_(1)`.
The resistance `R` is

A

`10 Omega`

B

`15 Omega`

C

`20 Omega`

D

`25 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`(5)/(R)=(l_(1))/(100-l_(1))`
`(5)/(R//2)=(1.6 l_(1))/(100-1.6l_(1))`
Solving `l_(1) = 25 cm and R = 15 Omega`.
Promotional Banner

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.43|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.44|10 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.41|9 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise High Level Problems (HIP)|21 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

What is end error in a metre bridge ? How is it overcome ? The resistances in the two arms of the metre bridge are R=5Omega and S respectively. When the resistance S is shnted with an equal resistance, the new balance length forund to be 1.5 i_(1) , Where I_(1) is the initial balancing length. Calculate the value of S.

Resistance in the two gaps of a meter bridge are 10 ohm and 30 ohm respectively. If the resistances are interchanged he balance point shifts by

Four resistances of 3Omega, 3Omega, 3Omega and 4Omega respectively are used to form a Wheatstone bridge. The 4Omega resistance is short circuited with a resistance R in order to get bridge balanced. The value of R will be

In a meter bridge, null point is 20 cm , when the known resistance R is shunted by 10 Omega resistance, null point is found to be shifted by 10 cm. Find the unknown resistance X .

The resistance in the left and right gaps of a balanced meter bridge are R_(1) and R_(1) . The balanced point is 50 cm . If a resistance of 24 Omega is connected in parallel to R_(2) , the balance point is 70 cm . The value of R_(1) or R_(2) is.

The resistances of the four arms P, Q, R and S in a Wheatstone's bridge are 10Omega, 30Omega, 30Omega and 90Omega , respectively. The emfs and internal resistances of the cell are 7V and 5Omega respectively. If the galvanometer resistance is 50Omega , the current drawn from the cell will be

A , B , C and D are four resistance of 2Omega , 2Omega , 2Omega and 3Omega respectivey. They are used to form a wheatstone bridge. The resistance D is short circuited with a resistance R in order to get the bridge balanced. The value of R will be

For resistances arranged to form a wheatstone's network are 10 Omega, 15 Omega, 6 Omega and 36 Omega . What resistance should be connected across the 36 Omega resistance to balance the bridge ?

RESONANCE-DAILY PRACTICE PROBLEM-DPP No.42
  1. A heavy particle is projected from a point on the horizontal at an ang...

    Text Solution

    |

  2. A particle of mass m is fixed to one end of a massless spring of sprin...

    Text Solution

    |

  3. If the cell of emf 5 volt shown in the figure gives a power of 10 Q, f...

    Text Solution

    |

  4. The figure shows the tungsten filament with constant diameter except a...

    Text Solution

    |

  5. A triangular medium has varying refracting index mu = mu(0) + ax where...

    Text Solution

    |

  6. If pressure at half the depth of a lake is equal to 2//3 pressure at t...

    Text Solution

    |

  7. Two partical tied to different strings are whirled in a horizontal cir...

    Text Solution

    |

  8. A bob is attached to one end of a string other end of which is fixed a...

    Text Solution

    |

  9. Two solids A and B floats in water. It is observed that A floats with ...

    Text Solution

    |

  10. When the energy of the incident radiation is increased by 20 % , kinet...

    Text Solution

    |

  11. Hydrogen atom in ground state is excited by a monochromatic radiation ...

    Text Solution

    |

  12. The resistance in the two arms of the meter bridge are 5 Omega and R O...

    Text Solution

    |

  13. Two cities are 150 km apart. Electric power is sent from one city to a...

    Text Solution

    |

  14. The electric field intensity at all points in space is given by vecE =...

    Text Solution

    |

  15. A particle of charge q(0) and of mass m(0) is projected along the y-ax...

    Text Solution

    |

  16. A meter bridge is set up as shown, to determine an unknown resistance ...

    Text Solution

    |

  17. Consider the circuit consisting of two capacitors having capacitances ...

    Text Solution

    |

  18. Six identical uniform conducting rods are fixed to make a regular hexa...

    Text Solution

    |

  19. The spectra of a black body at temperatures 273^(@)C and 546^(@)C are ...

    Text Solution

    |

  20. The time constant of the circuit shown in the figure is

    Text Solution

    |