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3 votes
1 answer
3k views

Do batteries provide electrons

In chemistry, the reaction at negative electrode produces electrons,which flow to the positive electrode through the circuit. But then, if circuit has a conductor, then wouldn't it also release ...
just_me's user avatar
  • 41
1 vote
0 answers
84 views

How does Passivation in Mercury-arc-valve cause "diode" behavior

Does passivation of lead anodes cause them to become semiconductors? Or even become diodes (eg. a p-n passage)? How does this work on an atomar level? This question has been risen by trying to ...
Robetto's user avatar
  • 243