Question

Assertion (A) :- The lines of magnetic field round a straight current carrying conductor are in the shape of concentric circles.
Reason (R) :- The direction of magnetic field produced by a straight wire carrying current can be obtained by Maxwell's right hand thumb rule.
(a) Both A and R are true and R is correct explanation of the assertion
(b) Both A and R are true but R is not the correct explanation of the assertion
(c) A is true but R is false
(d) A is false but R is true.​

Answer 1

Answer:

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Answer 2

Explanation:

The Magnetic field lines around a straight conductor carrying current are concentric circles whose centres lie on the wire. The direction of magnetic field lines can be determined using Right-Hand Thumb Rule.