Passing electricity through certain gases at a very low pressure can produce -----

In the phenomenon of electric discharge through gases at low pressure,the coloured glow in the tube appears as a result of :

When a vapour is excited at low pressure by passing an electric current through it ,a spectrum is obtained . a . Draw a spectral series of emissions lines in hydrogen b. Name the different series of hydrogen atom . c . In which region Lyman series is located .

Can you produce electricity from lemon?

Gases begin to conduct electricity at low pressure because

Which of these can be used to cure infertility in couples where male partner has very low sperm count ?

Assertion : Solar cell produces electricity without polluting the environment . Reason : It uses no fuel other than sunlight , no harmful gases, no burning and no wastes are produced.