Home
Class 12
PHYSICS
BALANCED WHEATSTONE BRIDGE...

BALANCED WHEATSTONE BRIDGE

Text Solution

Verified by Experts

The correct Answer is:
If deflection is galvenometer is zero then
potential difference across AB=potential difference across AD
`I_(1)P=I_(2)R` .........(i)
Potential diff. across BC=potential diff. across DC
`I_(1)Q=I_(2)S`........(ii)
From equation (i) and (ii) `(I_(1)P)/(I_(1)Q)=(I_(2)R)/(I_(2)S)rArr(P)/(Q)=(R)/(S)`
`(##ALN_PHY_C05_S01_061_A01##)`
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

KCL & KVL|| Combination OF Resistance||Wheatstone Bridge

Figure shows a balanced Wheatstone's bridge (1) If P is slightly increased, the current in the galvanometer flow from A to C. (2) If P is slightly increased, the current in the galvanometer flows C to A. (3) If Q is slightly increased, the current in the galvanometer flows from C to A. (4) If Q is slightly increased, the current in the galvanometer flows from A to C.

Four resistors A,B,C and D from a wheatstone's bridge. The bridge is balanced when C=100Omega , if A and b are inter changed, the bridge balances for C=121Omega . The value of D is

Extended Wheatstone Bridge

Circuits Based On Wheatstone Bridge

Stretching OF Wire and Change in Resistance||Wheatstone Bridge Example||Ladder Equivalent Resistance||Extended Wheatstone Bridge

Tricks for Combination Of Resistance,WheatStone Bridge

In a typical wheatstone network the resistance in cyclic order are A= 10Omega,B=5O,ega,C=4Omega and D=4Omega for the bridge to be balanced.

In a typical Wheatstone network, the resistances in cyclic order are A = 10 Omega, B = 5 Omega, C = 4 Omega D = 4 Omega for the bridge to be balanced

In the Wheatstone bridge network ABCD is balanced when P = 500 Omega, Q = 250 Omega and S = 12 Omega , what is the value of R ?

ALLEN-CURRENT ELECTRICITY-All Questions
  1. There is a definite potential difference between the two ends of a pot...

    Text Solution

    |

  2. Relation Between Drift Velocity And Current

    Text Solution

    |

  3. BALANCED WHEATSTONE BRIDGE

    Text Solution

    |

  4. A battery of epsilon and internal resistance r is used in a circuit wi...

    Text Solution

    |

  5. A nerve fibre contains a membrane separating two conducting fluids mai...

    Text Solution

    |

  6. Are the paths of free electrons straight lines between successive coll...

    Text Solution

    |

  7. Name the charge carriers in the following at room temperature : (i) Co...

    Text Solution

    |

  8. What is super conductivity ?

    Text Solution

    |

  9. Difference Between Potential Difference And Emf

    Text Solution

    |

  10. Can we produce high voltage on the human body without getting a shoc...

    Text Solution

    |

  11. A copper wire of length l and radius r is nickel plated till its final...

    Text Solution

    |

  12. When high power heater is used at homes all bulbs being used become di...

    Text Solution

    |

  13. Identical resistance of resistance R are connected as in figure then f...

    Text Solution

    |

  14. For the given network calculate current I and I(2).

    Text Solution

    |

  15. Find out the magnitude of resistance X in the circuit shown in figure,...

    Text Solution

    |

  16. Give four differences between potentiometer and voltmeter.

    Text Solution

    |

  17. Define drift velocity of free electron . If relaxation time is r then ...

    Text Solution

    |

  18. A constant voltage is applied across a wire of constant length then ho...

    Text Solution

    |

  19. A galvanometer coil has a resistance of 990Omega and it shows full sca...

    Text Solution

    |

  20. Draw a colour code for 42k Omega+-10% carbon resistance.

    Text Solution

    |