Addition of 0.3%-4.5% silicon to iron

Electrical Engineering XYZ MCQs

Addition of 0.3%-4.5% silicon to iron:

1. Increases the hysteresis loss
2. Increases the electrical resistivity of iron
3. Reduces the saturation magnetization
4. None of the above

Correct answer: 2. Increases the electrical resistivity of iron

Explanation: Addition of 0.3 % to 4.5 % silicon to iron increases electrical resistivity of iron.