Assertion (A): For a solenoid having N turns, . Reason (R): For all magnetic materials, B increases linearly with I.

Assertion (A): For a solenoid having N turns, 323-1

Reason (R): For all magnetic materials, B increases linearly with I.

[A].	Both A and R are true and R is correct explanation of A
[B].	Both A and R are true but R is not correct explanation of A
[C].	A is true but R is false
[D].	A is false but R is true

Answer: Option C

Explanation:

Increase of B with I is not linear. Hence R is false.