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Q. |
Which of the following is not a composition of Nernst glower or Nernst filament? |
A. | oxides of zirconium |
B. | oxides of barium |
C. | oxides of yitrium |
D. | oxides of thorium |
Answer» B. oxides of barium | |
Explanation: oxides of barium is not present in nernst glower. they are constructed by fusing oxides of zirconium, yitrium and thorium. |
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