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Catalogs Discussion Forums -> Electricity -> can some one answer -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
13 replies   
pls what are u talking about the potential changes is going above my head pls go in detail
Catalogs Discussion Forums -> Electricity -> can some one answer -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
13 replies   
are u sure that the potential will change if yes then every time a thunderstuck there will be some charege stored inside the conducter and till now eareth would become full of charge then it would be better to connect our aplliances to earth and save money
Catalogs Discussion Forums -> Electricity -> Ohm's Law : A clarification -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
7 replies   
i am doubt ful but if u see that the resistance implies opposition to the movement of electrons

if we inc the potential diff then the obsruction remains same but the drift velocity inc
do guide me if i am wrong
Catalogs Discussion Forums -> Electricity -> can some one answer -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
13 replies   
jesus
711/1000000
is not at all a big value i guess
and earth remains at 0 potential and" does not change if we give it charge"
Catalogs Discussion Forums -> Electricity -> can some one answer -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
13 replies   
the capacitance of earth is infinity if we take charge =Q/V
if we take it as a sphere then capacitance = 4pie e r
then it comes out to be 711micro farad
how can this be possible
 
 
 
 
Catalogs Discussion Forums -> Electricity -> confused -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
18 replies   
pls read ,my argument
Catalogs Discussion Forums -> Electricity -> confused -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
18 replies   
ok just tell can charge exist without mass
thenwe would have charged photons i guess that sounds uncanny
Catalogs Discussion Forums -> Electricity -> potential and field -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
8 replies   
then you mean to say V=ER is not true
Catalogs Discussion Forums -> Electricity -> confused -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
18 replies   
charge is independent of motion or frame of refrence chosen
a statonary electron and a moving electron have same charge but diff mass but acc to theory of relativity mass depends on motion
 
 
 
 
 
and charge depend on mass and mass depends on motion so why charge indep of motion
 
 
 
 
 
 
 
if charge exist without mass
thenwe would have charged photons i guess that sounds uncanny
 
 
Catalogs Discussion Forums -> Electricity -> potential and field -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
8 replies   
v (potential)= 1Q/4R if we multiply and divide by r we get
V=ER where e is the electric field
and now pls tell that if electric field inside is 0 then why the potential is non zero
 and also tell why field inside is zero
Catalogs Discussion Forums -> Physical Chemistry -> electrochemisrty very thoughtful -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
2 replies   
yes i also thought the same but my tutor told it is secondary
Catalogs Discussion Forums -> Physical Chemistry -> electrochemisrty very thoughtful -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
2 replies   
please tell if a cell is both electrochemical and electro lytic then
a it is fuel cell
b it is primary cell
c it is secondary cell
d it will not exist
Catalogs Discussion Forums -> Physical Chemistry -> please explain quickly -> Go to message
This Post 4 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]
3 replies   
i am not sure but i guess that
as nitric acid is a very strong oxidising agent it readily oxidises cu to its nitrate and all nitrates are soluble so it is too
where as hcl is very weak when compared with hno3 and
same goes for h2so4
if it was conc h2so4 then it would be soluble
one note worthy point is that hno3 when cold and 99% dilute leaves this prop otherwise as i said it is highly stong oxidising
Catalogs Discussion Forums -> Physical Chemistry -> extraction -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
5 replies   
i am not sure but i guess due to strong affinity of aluminium for water and even more for oxygen makes it difficult for extraction from Al2(SO4)3
 
 
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