Which of the following gases is used to fill an electric bulb?
A. H2 and N2
B. Ar and H2
C. N2 and O2
D. Ar and N2
Answer: Option D
Related Questions on Electricity and Magnetism
What will be the total resistance of the three 20-Ω coils connected in series?
A. 40 Ω
B. 20 Ω
C. 60 Ω
D. 800 Ω
Superconductors are substances which
A. conduct electricity at lower temperature
B. offer high resistance to the flow of current
C. offer not resistance to the flow of current
D. conduct electricity at high temperature

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