see the attachment
1) plz explain the function of battery and ground in the picture (discharge tube)
my doubt was that in discharge tubes the 2 plates are connected to some voltage source
let it be battery for instance see the fig in this case between the two plates there is empty space then what does the battery here do
does it send electrons to cathode which deposits on it and the cathde induces +charge on the anode and electrons return back
that is my doubt am i right or wrong
but when i consulted my physics teacher he told me that it cant induce to such long distances , he told that what happens is that electrons in anode are attracted by +terminal of the battery and when they reach the +terminal they repel the electrons in the - terminal which goes to the cathode as a result of repulsion
2)my main doubt is what is the meaning that battery maintains potential difference i cant understand this term can any1 explain in terms of charge movement (not mathematical)
3) also i read in
http://hyperphysics.phy-astr.gsu.edu/hbase/HFrame.html
about ground reservoir analogy i cant understand these lines
THE GROUND PROVIDES REFERRENCE VOLTAGE.THE GROUND CAN SUPPLY CHARGE TO CIRCUIT BUT ITS MAIN FUCTION IS TO HOLD THE VOLTAGE OF NEARBY WIRES AT THE VOLTAGE OF EARTH
PLZ ELECTRICAL ENGINEERS PLZ GUIDE ME
4) also why is that - terminal of battery is grounded in van de graff
in van de graff current cant flow from battery since it is not open circuit
in many cases circuits will not be complete as in discharge tube vaccuum tube.In these cases battery cant supply current then what else it does
if u answer it maintains potential differece plz tell me the meaning of it and plz explain about my grounding doubt as mentioned in this same quote
plz answer all my questions that i have numbered
1) plz explain the function of battery and ground in the picture (discharge tube)
my doubt was that in discharge tubes the 2 plates are connected to some voltage source
let it be battery for instance see the fig in this case between the two plates there is empty space then what does the battery here do
does it send electrons to cathode which deposits on it and the cathde induces +charge on the anode and electrons return back
that is my doubt am i right or wrong
but when i consulted my physics teacher he told me that it cant induce to such long distances , he told that what happens is that electrons in anode are attracted by +terminal of the battery and when they reach the +terminal they repel the electrons in the - terminal which goes to the cathode as a result of repulsion
2)my main doubt is what is the meaning that battery maintains potential difference i cant understand this term can any1 explain in terms of charge movement (not mathematical)
3) also i read in
http://hyperphysics.phy-astr.gsu.edu/hbase/HFrame.html
about ground reservoir analogy i cant understand these lines
THE GROUND PROVIDES REFERRENCE VOLTAGE.THE GROUND CAN SUPPLY CHARGE TO CIRCUIT BUT ITS MAIN FUCTION IS TO HOLD THE VOLTAGE OF NEARBY WIRES AT THE VOLTAGE OF EARTH
PLZ ELECTRICAL ENGINEERS PLZ GUIDE ME
4) also why is that - terminal of battery is grounded in van de graff
in van de graff current cant flow from battery since it is not open circuit
in many cases circuits will not be complete as in discharge tube vaccuum tube.In these cases battery cant supply current then what else it does
if u answer it maintains potential differece plz tell me the meaning of it and plz explain about my grounding doubt as mentioned in this same quote
plz answer all my questions that i have numbered
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