The materials suitable for making electromagnets should have
The materials suitable for making electromagnets should have
high retentivity and high coercivity
low retentivity and low coercivity
high retentivity and low coercivity
low retentivity and high coercivity
Solution
The retentivity of an electromagnet should be low so that after removing the electric current to the substance doesn't get magnetized and return to its original state. Hence, the materials suitable for making electromagnets should have low retentivity and low coercivity.