UKPCS-UKPSC Science: Conductors, semiconductors and insulators(2) #35

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). Semiconductor materials Elements that are used as semiconductors, such as silicon and germanium, have four outer shell electrons. This means that they can form four Read More …

UKPCS-UKPSC Science: Conductors, semiconductors and insulators(1) #34

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS-UKPSC Science (paper #6). Classifying materials Materials can be placed into three groups according to their electrical resistance: conductors semiconductors insulators Insulators and pure semiconductors have a very high resistance, Read More …