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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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`10` mA
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PHYSICS GALAXY - ASHISH ARORA-X-RAYS-Unsolved Numerica Problem for Preparation
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