Question
Physics Question on Magnetic properties of materials
The best material for the core of a transformer, is
A
hard steel
B
mild steel
C
stainless steel
D
soft iron
Answer
soft iron
Explanation
Solution
Soft iorn provides the best material for the core of a transformer as its permeability (μ) is very high. Its hysteresis curve is of small area and its coercivity is very low.