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Catalogs Discussion Forums -> Electricity -> wht happens in earthing -> Go to message
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Wht exactly happens when we earth a charged substance.




 






 




 


for ex. here A is +vely charged B get some induced charge due to A.




 






 




 


AFTER EARTHING  -ve charge remains on B due to attraction by A &+ve charge goes to earth.




 






 




 


the ques. is wht does it exactly mean , do electons goes in earth or wht ??

Catalogs Discussion Forums -> Electricity -> Plz..ans. this -> Go to message
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Hey guys! I was studying abt capacitors and i come across this :


Some +ve charge is given to metal 'A'  which induces some -ve charge on 'B' and due to this -ve charge potential of A is greatly reduced.


the ques. is how it get reduced and wht potential exactly means here.


Plz.. reply  rates assured

Catalogs Discussion Forums -> Physical Chemistry -> bonding -> Go to message
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electronic conf. of p in ground state = 1s22s22p63s23p33d0
electronic conf. of p in excited state = 1s22s22p63s13p33d1    
 (as it goes sp3d hybridisation).So it has empty d orbital.
 
Catalogs Discussion Forums -> Thermal Physics -> Thermodynamics(Plz.. ans... quickly) -> Go to message
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Q. A certain gas at atmospheric pressure is compressed adiabatically so that its volume becomes half of its original volume.Calculate the resulting pressure .Take y=1.4,for air.
 
I solved and got the equation:
Pressure = 0.76 *(2)1.4
Can some1 plz.. solve this eqn. (Rates assured)
Don't forget to explain.
Catalogs Discussion Forums -> Physical Chemistry -> Balance da Redox reaction -> Go to message
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3 replies   
Q. Balance the following redox reaction by oxidation no. method :
     FeS+ O2      Fe2O3 + SO2
(Explain in detail)
Catalogs Discussion Forums -> Physical Chemistry -> Oxidation Number (Plz........ ans..) -> Go to message
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3 replies   
Can some1 plz.. teach me how to find the oxidation no.(O.N.) for a given compound by giving some example or any easy method.
Like in (NH4)2SO4  If we have to calculte O.N. for N 1st we should know the O.N. for H and SO4 ,i know it is +1 for H but how to find O.N. for SO4. Im totally confused with this topic plz.. help guys.    (rates assured)
Catalogs Discussion Forums -> Organic Chemistry -> ans...it -> Go to message
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Ur ans. is correct.Can u tell me wht does the N represent here & y u use 'an' after methylpent and wht it means.
Catalogs Discussion Forums -> Organic Chemistry -> Nomenclature -> Go to message
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3 replies   
i need explanation.Know the ans.
Catalogs Discussion Forums -> Organic Chemistry -> Nomenclature -> Go to message
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3 replies   
Q.Give the IUPAC name for:
 
Ans:5-Propyloct-2-yne
Catalogs Discussion Forums -> Organic Chemistry -> ans...it -> Go to message
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3 replies   
Q. Give the IUPAC name of :
      
Catalogs Discussion Forums -> Algebra -> Statistics -> Go to message
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Q. show that :
    (-1,2,1),(1,-2,5),(4,-7,8) & (2,-3,4) are the vertices of a parallelogram .
(explain briefly...........rate assured)
Catalogs Discussion Forums -> Algebra -> urgent plz......ans. quickly (from ch- statistics) -> Go to message
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1 replies   
Q. Find the mean deviation for the following data :
 
Catalogs Discussion Forums -> Algebra -> Answer it......(rates assured) -> Go to message
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Q.  Find the sum to n terms of the sequence , 8, 88, 888, 8888.........
(plz.. explain briefly)
Catalogs Discussion Forums -> Analytical Geometry -> Straight lines ques. -> Go to message
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plz.. solve it with some shortcut method
Q.- If three lines whose equations are y=m1x+c1 ,y=m2x+c2 & y=m3x+c3 are concurrent, then show that m1(c2-c3) +m2(c3-c1) +m3(c1-c2)=0 .
Catalogs Discussion Forums -> Physical Chemistry -> Chemical Bonding & Molecular structure -> Go to message
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Some1 reply plz......
 
 
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