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A solenoid of 1000 turns is wound unifor...

A solenoid of 1000 turns is wound uniformly on a glass tube `50cm` long and `10cm` diameter. The strength of magentic field at the centre of solenoid when a current of `0.1A`. Flows through it is

A

100 A/m

B

200 A/m

C

400 A/m

D

50 A/m

Text Solution

Verified by Experts

The correct Answer is:
B
H = ni
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Knowledge Check

  • The magnetic field at a point on the axis of a long solenoid having 5 turns per cm length when a current of 0.8 A flows through it is

    A
    `5.024xx10^(-8) Wb//m^(2)`
    B
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  • A long solenoid has 200 turns per cm and carries a current of 2.5A. The magnetic field at its centre is

    A
    `3.14xx10^-2Wb//m^2`
    B
    `6.28xx10^-2Wb//m^2`
    C
    `9.42xx10^-2Wb//m^2`
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    `12.56xx10^-2Wb//m^2`

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