Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If wire of length L form a loop of radius R and have n turn. Find magnetic field at center of loop. Current flow in loop is I - Sarthaks eConnect

If wire of length L form a loop of radius R and have n turn. Find magnetic field at center of loop. Current flow in loop is I:

`(mu_0)/(4pi) I/R^2xxL^2`

`(mu_0)/(4pi) I/R^2xxLxxn^2`

`(mu_0I)/(4pi) (4pi^2n^2)/L`

`(mu_0)/(4pi) I4pi^2n^2xxL`