exam questions

[racer6m]

hi
came accross this question s on an exam., was wandering what they acually wanted.i just drew a blank the answer was propably right in front of me.
1) what is a cathode?
(terminal in which current flows out.)
is what i put, dont now if i was right !
2) the grid is usally operated-------------- in respect to the cathode.
(in series)?

 

[bphgravity]

What kind of exam was this for? You posted in the grounding forum, so it makes me wonder what the scope of the exam was covering?

 

[barbeer]

http://www.google.com/search?hl=en&client=firefox-a&rls=org.mozilla:en-USfficial&hs=tyR&defl=en&q=define:Cathode&sa=X&oi=glossary_definition&ct=title


I am curious of the exam also- the link shows a lot of possibilities.

 

[bphgravity]

I am thinking it has something to do with "Sacrificial Grounding Electrodes" based on the terminology and posting in the grounding forum?

 

[racer6m]

posted in wrong place

posted in wrong place

sorry posted in wrong forum,couldnt figure out how to move it.
its a local city exam still based on 96!!!! code

 

[Psychojohn]

Are they asking about vacuum tubes?

 

[Psychojohn]

If so,

Electrons are emitted from the cathode.
The grid is usualy operated negative in respect to the cathode.

 

[racer6m]

thanx now looking at the definition that makes sense