A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalant bonds resulting in __________ electrons.%!

A semi-conductor is damaged & behaves like a conductor, on passing a s

1.	A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalant bonds resulting in __________ electrons.%!
A.	Lack of free
B.	Excess of
C.	Decrease in
D.	None of these
Answer» C. Decrease in