(Options in pic)
A.
1. The more number of coil of wire you apply in the core , the _____ the magnetic field it produces.
2. The lesser number of coil of wire you apply in the core, the ____ the magnetic field it produces.
B.
3. Iron core help produce ____ magnetic field
4. Metal Core help produce___ magnetic field
5. ___ Core produces the strongest magnetic field​
