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In the Bohr's model of hy drogen atom, t...

In the Bohr's model of hy drogen atom, the electron moves around the nucleus in a circular orbit of radius `5xx10^(-11) m`. Its time period is `1.5xx10^(-16)s`. The current associated with the electron motion is:-

A

zero

B

`1.6 xx10^(-19) A`

C

0.17 A

D

`1.07 xx10^(-3)A`

Text Solution

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The correct Answer is:
D
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MOTION-CURRENT ELECTRICITY-EXERCISE -2 (OBJECTIVE PROBLEMS NEET)
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  2. If the current flowing through a copper wire of 1mm diameter is 1.1A. ...

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  3. A Steady current flows in a metalic conductor of non uniform cross sec...

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  4. Constantan wire is used in making standard resistances, because its :–

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  5. Which of the following is scalar :–

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  6. The current conduction in a discharged tube is due to

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  7. The number of free electrons per 100 mm of ordinary copper wire is 2xx...

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  8. The length of a given cylindrical wire is increased by 100%. Due to th...

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  9. Three copper wires of length and cross-sectional areas are (L,A)(2L,(A...

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  10. When a piece of aliminium wire of finite length is drawn through a ser...

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  11. The resistivity of a wire depends on its

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  12. The conductivity of a super conductor is

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  13. A copper wire iis stretched to make it 0.1% longer. What is the percen...

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  14. A metal wire of resistance R is cut into three equal pieces that are t...

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  15. Masses of three wires of same metal are in the ratio 1:2:3 and their l...

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  16. As the temperature of a metallic resistor is increased,the product of ...

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  17. A bullet of mass 2 gm is having a charge of 2 muc. Through what potent...

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  18. What will be the equivalent resistance between the A and D ?

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  19. In the arrangement of resistances shown in the circuit. The potential...

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  20. Express which of the following set ups can be used to verify ohm's l...

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