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Magnetic induction at a point due to a s...

Magnetic induction at a point due to a small element of current carrying conductor is

A

inversely proportional to the square of the distance of the point from the conductor

B

inversely proportional to the distance of the point form the conductor

C

directly proportional to the square of the length of conductor

D

directly proportional to the square of the current

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The correct Answer is:
A
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
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  2. A charged particle is projected perpendicular to uniform magnetic fiel...

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  3. Magnetic induction at a point due to a small element of current carryi...

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  4. Statement A : current is scalar Statement B : current element is vec...

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  5. A circular coil carrying current behaves as a

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  6. The current through a circular coil appears to be flowing in clock-wis...

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  7. A steady current flows in a long wire. It is bent into a circular lopp...

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  8. A current carrying coil is placed with its plane in the magnetic merid...

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  9. The dipole moment of a current loop is independent of

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  10. The magnetic field at the centre of the current carrying coil is

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  11. A circular coil of radius r having number of turns n and carrying a cu...

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  12. Blot-Savart law indicates that moving electrons (velocity v) produce a...

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  13. An electron is projected with uniform velocity along the axis of a cur...

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  14. In a cyclotron, a charged particle

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  15. The gyro-magnetic ratio of an electron in an H-atom, according to Bohr...

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  16. A current carrying coil is subjected to a uniform magnetic field. The ...

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  17. Energy in a current carrying coil is stored in the form of

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  18. The magnetic field (dB) due to a small element. (dl) at a distance (ve...

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  19. A current loop consists of two identical semicircular parts each of ra...

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  20. Two similar coils of radius R are lying concentrically with their plan...

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