An X-ray tube is run at 50 kV. The current flowing in it is 20 mA. The power of the tube is :
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An X-ray tube is run at 50 kV. The current flowing in it is 20 mA. The power of the tube is :

G1 Physics · Accepted Answer

Step 1: For continuous X-rays use the Duane-Hunt relation λₘᵢₙ = hc/(eV). Step 2: For characteristic lines use the difference of shell binding energies or Moseley's law √ν ∝ (Z − b). Using the stated data gives A: 10⁰⁰ W.