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In the previous question, the orbital el...

In the previous question, the orbital electron has magnetic moment

A

zero

B

`pi r^(2) n e`

C

`pi r^(2) n^(2) e`

D

`(mu_(0))/(2pi)r^(2) n e`

Text Solution

Verified by Experts

The correct Answer is:
B
`mu = iA = (e n) (pi r^(2)) = pi r^(2) n e`
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CP SINGH-MAGNETIC FORCE, MOMENT AND TORQUE-Exercises
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  2. An electron moving in a circular orbit of radius r makes n rotation...

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  3. In the previous question, the orbital electron has magnetic moment

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  4. A point P lies on the axis of a flat coil carrying a current. The magn...

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  5. Due to the flow of current in a circular loop of radius R, the magneti...

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  6. A flat coil of n turns, area A and carrying a current I is placed in a...

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  7. A loop carrying current I lies in the x-y plane as shown in the figu...

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  8. A thin circular wire carrying a current I has a magnetic moment M. The...

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  9. A steady current i flows in a small square lopp of wire of side L in a...

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  10. A rectangular coil of 100 turns has length 5 cm and width 4 cm. it is ...

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  11. A 50 turn circular coil of radius 2.0 cm carrying a current of 5.0 A ...

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  12. A rectangular loop of sides 20 cm and 10 cm carries a current of 5.0 A...

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  13. A closely wound solenoid of 2000 turns and area of cross-section 1.5 x...

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  14. A coil in the shape of an equilateral triangle of side l is suspended ...

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  15. A coil of 100 turns and area 2 xx 10^(-2) m^(2), pivoted about a verti...

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  16. Four wires each of length 2.0 meters area bent into four loops P,Q,R a...

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  17. A particle of the charged q and mass m moves in a circular orbit of ra...

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  18. Two particles , each of mass m and charge q, are attached to the two ...

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  19. A long straight conductor carrying a current lies along the axis of a ...

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