Q126 / 200 · NEET 2010 (Screening) · Physics
Electromagnets are made of soft iron because soft iron has
- Alow retentivity and high coercive force
- Bhigh retentivity and high coercive force
- Correct answerClow retentivity and low coercive force
- Dhigh retentivity and low coercive force
Solution
Electromagnets are made of soft iron because soft iron has low retentivity and low coercive force or low coercivity Soft iron is a soft magnetic material.
Hence, the correct answer is option: 'C'.