1) What are charges in static electricity a) proton electron b) low high c) up down d) inside outside 2) What is the use of static electricity a) photocopier b) lense c) vehicle d) water purifier 3) What is the unit of e.m.f a) volt b) ampere c) watt d) energy

Papan Peringkat

Gaya visual

Pilihan

Berganti templat

Pulihkan simpan otomatis: ?