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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 electrons is converted into X-rays.

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 electrons is converted into X-rays.

Grade:11

1 Answers

Kevin Nash
askIITians Faculty 332 Points
7 years ago
Heat produced/sec = 200 w ⇒ neV/t = 200 ⇒ (ne/t)V = 200 ⇒ i = 200 /V = 10 mA.

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