The colour of the positive column in a gas discharge tube depends on – McqOptions

MCQOPTIONS

1.	The colour of the positive column in a gas discharge tube depends on [Kerala (Engg.) 2002]
A.	The type of glass used to construct the tube
B.	The gas in the tube
C.	The applied voltage
D.	The material of the cathode
Answer» C. The applied voltage

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