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In an X-ray tube if the electrons are ac...

In an X-ray tube if the electrons are accelerated through `140KV` then anode current obtained is 30mA. If the whole energy of electrons is converted into heat then the rate of production of heat at anode will be

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An X-ray tube when operated at 60 kV, then reading of tube current is 50 mA. Assuming that the total energy of electron is converted into heat, the rate of heat produced at the anode in calories/second is about :

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The potential difference applied to an X-ray tube is 5kV and the current through it is 3.2 mA. Then the number of electrons striking the target per second is

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