Addition of 0.3 to 4.5% silicon to iron ________ the electrical resistivity of iron?

Addition of 0.3 to 4.5% silicon to iron ________ the electrical resis

1.	Addition of 0.3 to 4.5% silicon to iron ________ the electrical resistivity of iron?
A.	increases
B.	decreases
C.	does not change
Answer» B. decreases