increase
decrease
becomes zero
remain same
Alnico
Manganese
Copper
Bismuth
Alnico is having higher retentivity of magnetism.
electromagnets
permanent magnets
bar magnets
para magnets
Heating effect
Magnetic effect
Chemical effect
Thermal effect
ampere/cm square
weber/m square
ampere turns/weber
ampere/weber
Reluctance is magnetomotive force per unit flux, So unit of reluctance = unit of MMF / unit of magnetic flux = A/Wb. = Ampere turns / Weber