Electronic Devices and Circuits - Engineering

Q1:

The impurity added to extrinsic semiconductor is of the order of

A 1 in 100

B 1 in 1000

C 1 in 100, 0000

D 1 in 100, 000, 000

ANS:D - 1 in 100, 000, 000

Yes, the answer should be D Because 1 atom for 10 to the power of 8 atoms is added.