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The distance between two long and parall...

The distance between two long and parallel wires is b. If the current flowing through each of them is iA, what will be the force acting per unit length of each wire?

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Knowledge Check

  • Two long and parallel wires are at a distance of 0.1m and a current of 5 A is flowing in each of these wires. The force per unit length due to these wires will be

    A
    `5xx10^(-5)N//m`
    B
    `5xx10^(-3)N//m`
    C
    `2.5xx10^(-5)N//m`
    D
    `2.5xx10^(-4)N//m`

  • Two long and parallel wires are at a distance of 0.1 m and a current of 5 A is flowing in each of these wires. The force per unit length due to these wires will be

    A
    `5xx10^(-3)N//m`
    B
    `5xx10^(-5)N//m`
    C
    `2.5xx10^(-5)N//m`
    D
    `2.5xx10^(-5)N//m`

  • Two thin and parallel wires are placed at a distance b and I current is flowing through each of the wires. The magnitude of the force exerted on the unit length of wire due to another wire will be :

    A
    `mu_0i^2//b^2`
    B
    `mu_0i^2//(2pib)`
    C
    `mu_0i//(2pib)`
    D
    `mu_0i//(2pib^2)`

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    Shown in the figure is a very long semi-cylindrical conducting shell of radius R and carrying a current i. An infinitely long straight current carrying conductor is lying along the axis of the semicylinder. If the current flowing through the straight wire be i_(0) , then the force per unit length on the conducting wire is :

    Two long parallel wires are at a distance of 1 m. Both of them carry 1A of current. The force of attraction per unit length between the two wires is

    If same current I passing through two parallel wires separated by a distance b, then force per unit length will he

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