

MCQOPTIONS
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1. |
A long solenoid has n turns per meter and current I A is flowing through it. The magnetic field at the ends of the solenoid is [MP PMT 2001; MP PET 2002] |
A. | \[\frac{{{\mu }_{0}}nI}{2}\] |
B. | \[{{\mu }_{0}}nI\] |
C. | If assertion is true but reason is false. |
D. | \[2{{\mu }_{0}}nI\] |
Answer» B. \[{{\mu }_{0}}nI\] | |