Electronic Devices and Circuits - Engineering

Q1:

The mean free path of conduction electrons in copper is about 4 x 10-8 m. For a copper block, find the electric field which can give, on an average, 1 eV energy to a conduction electron

A 2.62 x 107 V/m

B 2.64 x 107 V/m

C 2.5 x 107 V/m

D 2.58 x 107 V/m

ANS:C - 2.5 x 107 V/m

Work (Energy) = F x d 1 eV = e.E x d 2.5 x 107 V/m.