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Establish the balanced condition of Whea...

Establish the balanced condition of Wheatstone's bridge by applying Kirchhoff's laws .

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Establish the balanced condition of Wheatstone's bridge by applying Krichhoff's laws.

Obtain the balanced conditon of Wheatstone bridge from Kirchhoff’s Law.

Knowledge Check

  • Statement I : If the resistance of the first two arms P and Q of a balanced Wheatstone bridge are exchanged , the balanced condition is not disturbed . Statement II : The balanced condition of a Wheatstone bridge is independent of the resistance of the galvanometer used .

    A
    Statement I is true ,statement II is true , statement II is a correct explaination for statement I.
    B
    Statement I is true , statement II is true , statement II is not a correct explanation for statement I.
    C
    Statement I is true , statement II is false .
    D
    Statement I is false , statement II is true .

  • Statement I : A balance is obatained at the position of 40 cm othe metere wire ,when 2Omega and 3 Omega resistances are put in the lift and right gaps respectively of a meter bridge Statement II : The balanced condition of a Wheatstone bridge is P//Q=R//S .

    A
    Statement I is true ,statement II is true , statement II is a correct explaination for statement I.
    B
    Statement I is true , statement II is true , statement II is not a correct explanation for statement I.
    C
    Statement I is true , statement II is false .
    D
    Statement I is false , statement II is true .

  • In which case will the nyull condition of a wheatstone beidge change ?

    A
    If the resistance in different arms are changed
    B
    If the positions of the battery and galvanmeter are interchanged
    C
    If a battery of different emf is used
    D
    If a glvanometer of different resistance is used

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    Write Kirchhoff’s 2nd law.

    Write the Wheatstone bridge principle.

    What happens if the galvanometer and cell are interchanged at the balance point of the wheatstone bridge? Would the galvanometer show any current?

    Draw Wheatstone bridge circuit and write down the balancing condition of it. In a meter bridge the balance point is found to be at 40 cm from one end when the resistor at the end is 10 Omega . Find the resistance at the other side. If the galvanometer and the cell are interchanged at the balance condiotion, would it affect the current through the galvanometer?

    ABCD is a Wheatstone bridge in which the resistanvely 2Omega , 4 Omega , 6Omega and 8Omega . The points A and C are connected to the termicals of a cell of emf 2 v and negligible internal resistance . The points B and D are connected to a galvanometer of resistance 50Omega . Using Kirchhoff's laws find the current flowing through the galvanometer .

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