Q. Which of the following is not a composition of Nernst glower or Nernst filament? (Solved)
1. oxides of zirconium
2. oxides of barium
3. oxides of yitrium
4. oxides of thorium
- b. oxides of barium
1. oxides of zirconium
2. oxides of barium
3. oxides of yitrium
4. oxides of thorium