Assertion : The magnetic field at the ends of a very long current carrying solenoid is half of that at the centre.
Reason : If the solenoid is sufficiently long. The field within it is uniform.

Options

A. (a) Statement I is True, Staatement II is True, Statement II is correct expaination for Statement I.
B. (b) Statement I is True, Staatement II is True, Statement II is NOT a correct expaination for Statement I.
C. ( c) statement I is True, Satement II is false.
D. ( d) statement I is False, Satement II is True.

Answer

B

Explanation

(b) For solenoid `B_(end) = (1)/(2)(B_("in")`
Also for long solenoid, the magnetic field is unifrom within it but this resoun is not explaining the assertion.