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A straight wire ( conductor ) length 10c...

A straight wire `(` conductor `)` length `10cm` is kept in a uniform magnetic field of induction `0.02T` . The angle between the conductor and the field direction is `30^(@)`. A current of `5A` is passed through the conductor . Th force on the conductor is `(` in `N )`

A

`4 x 10^(-3)`

B

`5 xx 10^(-3)`

C

`6 xx 10^(-3)`

D

`7 xx 10^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`F = Bil sin theta `
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Knowledge Check

  • A current carrying conductor placed in a uniform magnetic field , experience

    A
    a weak force
    B
    a strong force
    C
    a mechanical push on it
    D
    an electrostatic imbalance

  • When an electric current is passing through a conductor, there is no electric field produced because the conductor is

    A
    positively charged
    B
    negatively charged
    C
    electrically neutral
    D
    none of these

  • A straight conductor of length 1.5m moves in a uniform magnetic field of induction 5xx10^(-3)T with a velocity of 5m//s in a direction perpendicular to its length and also perpendicular to the field. The e.m.f. induced between the ends of the conductor is

    A
    `1.5xx10^(-3)V`
    B
    `3.75xx10^(-3)V`
    C
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    D
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