reluctance

nouns

(physics) opposition to magnetic flux (analogous to electric resistance)
domain category
the science of matter and energy and their interactions
"his favorite subject was physics"
is a type of (narrower)
a physical phenomenon involving electricity
a certain degree of unwillingness
"a reluctance to commit himself"; "his hesitancy revealed his basic indisposition"; "after some hesitation he agreed"
is derived from
is derived from
is derived from