A short bar magnet is placed with its south pole towards geographical north. Neutral points are at 20 cm from centre. Given , find magnetic moment.
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Official Solution
Correct Option:
(3)
Concept:
At neutral point:
For axial line:
Step 1: Equate fields
Step 2: Substitute values
Step 3: Convert units Conclusion:
02
PYQ 2014
medium
physicsID: met-2014
A magnet makes 40 oscillations per minute at a place with . At another place, time period is 2.5 s. Find there.
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4
Official Solution
Correct Option:
(2)
Concept: Step 1: Initial time period
Step 2: Use relation Conclusion:
03
PYQ 2014
medium
physicsID: met-2014
Coercivity . Solenoid: 500 turns, length 1 m. Find current needed to demagnetise.
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Official Solution
Correct Option:
(3)
Concept:
Magnetic field in solenoid:
Step 1: Use coercivity
Step 2: Solve Conclusion:
About Magnetism And Matter - MET
Magnetism And Matter is a vital chapter for MET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Magnetism And Matter PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Magnetism And Matter carry the most weight. Then, tackle the questions iteratively to solidify your understanding.
