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Heat at the rate of 200 W is produced in...

Heat at the rate of 200 W is produced in an X-ray tube operating at 20 kV. Find the current in the circuit. Assume that only a small fraction of the kinetic energy of electron is converted into X-rays.

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`Heat produced//sec=200W `
` rArr (n eV)/t=200 `
` (n e/t)V=200 `
` rArr i=200/V `
` =200/(20xx10^3)=10mA `
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HC VERMA-X-Rays-Exercises
  1. The short-wavelength limit shifts by 26 pm when the operating voltage ...

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  2. The electron beam in a colour TV is accelerated through 32 kV and then...

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  3. When 40 kV is applied across an X-ray tube, X-ray is obtained with a m...

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  4. An X-ray tube operates at 40 kV. Suppose the electron converts 70% of ...

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  5. The wavelength of Kalpha X-ray of tungsten is 21*3 pm. It takes 11*3 k...

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  6. The Kbeta X-ray of argon has a wavelength of 0.36 nm. The minimum ener...

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  7. The kalpha X-rays of aluminium (Z = 13 ) and zinc ( Z = 30) have wavel...

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  8. A certain element emits Kalpha X-ray of energy 3*69 keV. Use the data ...

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  9. The kbeta X-rays from certain elements are given below. Draw a Moseley...

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  10. Use Moseley's law with b = 1 to find the frequency of the Kalpha X-ray...

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  11. The Kalpha and Kbeta X-rays of molybdenum have wavelengths 0*71 A and ...

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  12. The wavelength of Kalpha and Lalpha X-rays of a meterial are 21.3 pm a...

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  13. The energy of a silver atom with a vacancy in K shell is 25.31 keV, in...

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  14. Find the maximum potential difference which may be applied across an X...

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  15. The electric current in an X-ray tube (from the target to the filament...

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  16. Heat at the rate of 200 W is produced in an X-ray tube operating at 20...

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  17. Continuous X-rays are made to strike a tissue paper soaked with pollut...

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  18. A free atom of iron emits Kalpha X-rays of energy 6.4 keV. Calculate t...

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  19. The stopping potential in a photoelectric experiment is linearly relat...

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  20. Suppose a monochromatic X-ray beam of wavelength 100 pm is sent throug...

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