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  4. n-type semiconductor is obtained on doping intrinsic germanium by

Q. n-type semiconductor is obtained on doping intrinsic germanium by

 2989  180 Gujarat CETGujarat CET 2007Semiconductor Electronics: Materials Devices and Simple Circuits Report Error

Solution:

When a small amount of pentavalent impurity is added to intrinsic germanium, it is known as n-type semiconductor. Typical examples of pentavalent impurities are arsenic, antimony, phosphorus.