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Q.

Assertion (A) : When current is represented by a straight line, the magnetic field will be circular

 Reason (R) : According to Ampere’s right hand rule, direction of force is parallel to the magnetic field

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a

Both A and R are true but R is not the correct explanation of the A.

b

A is true, but R is false

c

Both A and R are true and R is the correct explanation of the A

d

A is false, but R is true

answer is C.

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Detailed Solution

Solution: ‘A’ is correct, R is incorrect 

Reason : According to Ampere’s right hand rule, the direction of force is along tangent drawn to the magnetic lines of force.

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Assertion (A) : When current is represented by a straight line, the magnetic field will be circular Reason (R) : According to Ampere’s right hand rule, direction of force is parallel to the magnetic field