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Sketch the magnetic field lines in xy pl...

Sketch the magnetic field lines in xy plane for a pair of long parallel wires laid along z direction if-
(a) Both wires carry current in same direction.
(b) Both wire carry current in opposite directions.

Text Solution

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The correct Answer is:
`(##IJA_PHY_V02_C10_E01_001_A01##)`
`(##IJA_PHY_V02_C10_E01_001_A02##)`
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A long straight telephone cable contains six wires, each carrying a current of 0*5A . The distance between wires can be neglected. What is the magnitude of the magnetic field at a distance 10cm from the cable, (i) if the currents in all the six wires are in the same direction (b) if four wires carry currents in one direction and the other two in opposite direction?

Two free parallel wires carrying currents in opposite directions

Knowledge Check

  • Two free parallel wires carrying currents in opposite directions

    A
    repel each other
    B
    attract each other
    C
    neither attract nor repel
    D
    may attract as well as repel under different values of currents

  • Two free parallel wires carrying currents in opposite directions

    A
    repel each other
    B
    attract each other
    C
    neither attract nor repel
    D
    may attract as well as repel under different values of currents.

  • Two free parallel wires carrying currents in opposite directions

    A
    repel each other
    B
    attract each other
    C
    neither attract nor repel
    D
    may attract as well as repel under different values of currents.

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