Recent content by Zahid Iftikhar

High regards for your kind reply. It was very useful.

Thank you very much for this wonderful explanation. It is really very helpful. Regards

Thank you very much for your precious time sir. I could not understand what you mean by gray bubble here. Did you mean the disc at the end of the rod? Further what is this object covering the whole electroscope? What is it for? Regards

Thanks, sir for your kind time. My reservation on the provision of path, in this case ground attached to the disc, is that it should attract electrons from the ground, instead of gold leaves. Stated simply, electrons from leaves cannot come to the disc as long as positively charged source...

My explantion of this electrostatic induction is that if the disc of electroscope is ground, electrons will flow from the ground and neutralize the disc, leaving the electroscope negatively charged after removal of the ground, but the book says it should be postively charged. As per book, the...

In derivation of relation for pressure of Gas ,(see pic below) the time for rate of change of momentum of molecules should be the time for which the wall of the vessel and the molecules kept interacting with each other, not the time between successive collisions. As circumscribed below, my...

Thank you Dr_Nate for the kind reply. All I am understanding from your replies is there is some special mechanism by which a nucleus absorb energies. I humbly submit I lack that knowledge and request to kindly share something about it. Is this absorption similar to an electron inside an orbit...

I am thankful that the replies have helped me clarify many of my misconceptions. I have one more doubt in mind in support of my statement made earlier regarding breaking of nucleus. In Rutherford nuclear reaction where nitrogen is hit by alpha particles and oxygen and a proton are produced...

Thanks Sir. It is very convincing argument. I am pleased and thankful for your time. High regards.

Thanks for the reply. I correct myself. Sure sunlight falls short of binding energy of nucleus. But my question still stands. The thermal energy we provide during chemical reactions aren't sufficient enough to provide this required energy? Please reply with a little bit detail. Regards

Hi I need help from PF scholars to figure out one difficulty in understanding stability of nucleus. Nuclei remain unaffected during chemical reactions taking place even at very high temperatures and pressures. But their binding energy figures are not that high. Such chemical reactions have heat...

Thanks. I need more help on this please.

One property of series resonance circuit is that at resonance, the voltage across circuit elements R,L and C may be larger than the source voltage. I can relate it to vector analogy where component vectors may have larger values than the resultant and the phenomenon is counter-intuitive. This...

Thanks indeed. This is the best part of the discussion. I am way satisfied. Thanks to everybody who helped. You all are great people.

Thanks indeed for the detailed explanation. I am sure I have lacked in exactly communicating my question and I added a clipping to support me to clarify. I understand in all you wrote above. I understand a capacitor keeps charging for infinite time and in every time constant there is an...