WAEC - Physics (1989 - No. 15)

Which of the following substance is not a good conductor of electricity?

Human body

Glass

Aluminium

Earth

Copper

Смхиман (0)

Сурталчилгаа

Javascript-д энэ хуудсыг зохих ёсоор ачаалахыг зөвшөөрнө үү