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The electric current in an X-ray tube (f...

The electric current in an X-ray tube (from the target to the filament) operating at `40 kV `is `10 mA`. Assume that on an average, 1% of the total kinetic energy of the electrons hitting the target are converted into X-rays (a) what is the total power emitted as X-rays and (b) how much heat is produced in the target every second?

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The correct Answer is:
(a) `4W` , (b) `396 J`
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PHYSICS GALAXY - ASHISH ARORA-X-RAYS-Unsolved Numerica Problem for Preparation
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