Tiān-chû-ha̍k

Tiān-chû-ha̍k (電磁學) sī bu̍t-lí-ha̍k ê chi̍t ê hun-chi, sī choan-bûn thàm-thó gián-kiù tiān kap chû kau-hō͘ koan-hē ê ha̍k-kho.