Heat at the rate of 200 W is produced in an X-ray tub 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.

Question

Philoid · Accepted Answer

Given:

Heat produced per second= power(P)=200W

operating potential= 20Kv

we have to find the current in the circuit

power is given by the equation, P=VI

V- potential difference and I- current

since current is number of electrons passing per unit time

where, e= charge on an electron

n - no. of electrons

this gives,

, is the current in the circuit.