An X ray tube is operated at a tube potential of 40,000 V. Calculate :
(i) Kinetic energy of an electron emitted by the filament when it reaches the target / anode.
(ii) Wavelengths of all the X rays emitted by the X ray tube.
What is meant by the terms :
(i) a full wave rectifier ?
(ii) an amplifier ?
(iii) an oscillator ?
(i)Full wave rectifier : It converts alternating current into direct current. In this complete conversion of a.c. to d.c. takes pipe.
(ii) An amplifier : A device which amplify a signal. A junction diode cannot amplify a signal. A transistor consisting of two p-n junctions one toward biased and the other reverse bias is used to amplify a weak signal.
(iii) An oscillator : It is a device that generates electrical oscillations of constant amplitude and of desired frequency, without any external input.