TRANSISTOR

TRANSISTOR-A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power.WHEN two doide attach each other positive to positive and negative to nagative
then transistor made ...PNP OR NPN ..JUNCTION
WORKING OF TRANSISTOR--IT CONVERT LOW SIGNAL IN HIGH SIGNAL.
CONVERT D.C.IN A.C.AND WORK AS SWICHINGOK TESTING OF TRANSISTOR,SET M/M ON BUZZE MODE ,AND CHAK.VALUE,