» Unlabelled » Addition of 0.3 to 4.5% silicon to iron _____ the electrical resistivity of iron.

Friday, 23 August 2013

Addition of 0.3 to 4.5% silicon to iron _____ the electrical resistivity of iron.

(a)     increases  
(b)     decreases
(c)     does not change

Ans: a


at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)