MEDRADSC 3G03 Lecture Notes - Lecture 4: Single Coil Guitar Pickup, Photon, Autotransformer

• School: McMaster University
• Department: Medical Radiation Sciences
• Course: MEDRADSC 3G03
• Professor: Dwight Mountford

Document Summary

If we wa(cid:374)ted to stay the sa(cid:373)e we would (cid:272)hoose b a(cid:374)d b". If we wanted to increase the voltage we need more turns on the secondary side. If we wanted to decrease we can either choose d or e. 10 turns on the primary side, only 5 on the secondary side so we will cut the voltage from 120 to 60. We can choose the number of turns on both sides so that we can get whatever we want for the secondary side. Low voltage? focal spot selection: heating of filament, regulates current flow through the filament of the x- ray tube, what we use to get our thermionic emission, resistors: how we control how much current flows through the filament. Increase resistance= current drops: small and large filament, stepdown transformer/mutual induction, process, obtains voltage by tapping off appropriate number of turns off autotransformer, step down transformer has less turns in the secondary winding, to reduce voltage to approx.