1. Dangane da hoton da ke ƙasa, idan radius na lanƙwasa wayar ya kai cm 50, a ƙayyade girman filin maganadisu a tsakiyar lanƙwasa (a wuri na 0, duba hoton da ke ƙasa). (µ o = 4π.10 -7 Wb.A -1 m -1 )
An sani:
Radius (r) = 50 cm = 0.5 m
Wutar lantarki (I) = 1.5 Ampere
Ruwan da ke shiga cikin injin (µ o ) = 4π.10 -7 Wb.A -1 m -1
Ana so: Girman filin maganadisu


An sani:
An sani:

