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Question

A neon lamp is connected to a voltage a.c. source. The voltage is gradually increased from zero volt. It is observed that the neon flashes at 50 V. The a.c. source is now replaced by a variable dc source and the experiment is repeated. The neon bulb will flash at
  1. 50V
  2. 70V
  3. 100V
  4. 35V

A
50V
B
70V
C
100V
D
35V
Solution
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Answer is B.

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