premium feature crown icon
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly

Given below are two statements: 

Assertion (A):

Two straight current-carrying conductors A and B are lying in a vertical plane as shown. The separation between them is h and mass per unit length is \(𝜆 .\) Keeping \(A\) fixed, when \(B\) is raised by a small height \(dh,\) the net work done by external force per unit length will be \(𝜆 gdh.\)
 

Reason (R): The work done by the magnetic field during this process is non-zero.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Force between Current Carrying Wires |
Level 3: 35%-60%
Hints

Given below are two statements: 

Assertion (A): Two parallel wires carrying current in the same direction attract each other, whereas two proton beams moving parallel to each other repel each other.
Reason (R): Wire-carrying current is electrically neutral, therefore it is experiencing only magnetic attraction while the electric force of repulsion between protons is more than magnetic attraction. 
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Force between Current Carrying Wires |
 78%
Level 2: 60%+
Hints