The desirable properties for making permanent magnets are

1.  high retentivity and high coercive force

2.  high retentivity and low coercive force

3.  low retentivity and high coercive force

4.  low retentivity and low coercive force

Subtopic:  Curie's Law and Hysteresis |
To view explanation, please take trial in the course below.
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To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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Electromagnets are made of soft iron because soft iron has

1.  high retentivity and high coercive force

2.  high retentivity and low coercive force

3.  low retentivity and high coercive force

4.  low retentivity and low coercive force

Subtopic:  Curie's Law and Hysteresis |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology

When a ferromagnetic material goes through a hysteresis loop, the magnetic susceptibility:
(a) has a fixed value
(b) may be zero
(c) may be infinity
(d) may be negative
Choose the correct option: 
1. (a), (b), (c)
2. (b), (c), (d)
3. (c), (d), (a)
4. (a), (d), (b)

Subtopic:  Curie's Law and Hysteresis |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology