Fu Chen-Chu
Tai Sung
Tung Cuan
None of these
Faizi
Abdul Rahim Khankhana
Abul Fazal
Abdul Kadir Badayun
Copper
Nickel
Iron
Cobalt
Rayon
Dacron
Fibre glass
Nylon
electrical energy into mechanical energy
High voltage into low voltage
Low voltage into high voltage
Mechanical energy into electrical energy