 
			 
			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. \[{{\mu }_{0}}nI\] | |