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For What property of conductors, current...

For What property of conductors, current will flow through a wire connecting them?

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The correct Answer is:
potential difference
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A shunt of resistance 1 Omega is connected with a galvanometer of resistance 100 Omega . What part of the main current will flow through the galvanometer?

If a stunt of 1 Omega is connected to a galvanometer of resistance 99 Omega , what fraction of the main current will flow through the galvanometer?

Knowledge Check

  • A shunt of resistance 1 Omega is connected with a galvanometer of resistance 100 Omega . What part of the main current will flow through the galvanometer?

    A
    `1/99`
    B
    `1/100`
    C
    `1/101`
    D
    `1/98`

  • When a current of 1 A flows through a copper wire of cross sectional area 1mm^2 the drift velocity of free electrons becomes v, What will be the drift velocity of free electrons when the same current flows through a copper wire of cross sectional area 2mm^2 ?

    A
    `v/2`
    B
    v
    C
    2v
    D
    4v

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    Using Bio-Savart law, find out the magnitude of the mangnetic field at an external point due to a current flowing through an infinitely long straight wire. Sketch the field lines in the neighbourhood of the wire.

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