A) \[{{\mu }_{0}}nI\left( 1-\chi \right)\]
B) \[{{\mu }_{0}}nI\chi \]
C) \[{{\mu }_{0}}n{{I}^{2}}\left( 1+\chi \right)\]
D) \[{{\mu }_{0}}nI\left( 1+\chi \right)\]
Correct Answer: D
Solution :
Magnetic field inside a long solenoid with an iron core inside it is \[B=\mu nI\] But \[\mu ={{\mu }_{0}}\left( 1+\chi \right)\] \[\therefore \,\,\,\,B={{\mu }_{0}}\left( 1+\chi \right)nI\]
You need to login to perform this action.
You will be redirected in
3 sec
