In comparison to an electric bulb, a fluorescent tube is preferred because
A. It has greater external outer surface to radiate/emit the light
B. There is no effect of voltage fluctuation on it
C. In the tube, electric energy almost converted into light energy
D. None of the above
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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