iTeachChem
A Study Community for Everyone and Everything. We have weekly sessions on Spirituality, Math and Science! JEE, NEET prep? All doubts are crowdsourced. Hare Krishna!
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iTeachChem
A Study Community for Everyone and Everything. We have weekly sessions on Spirituality, Math and Science! JEE, NEET prep? All doubts are crowdsourced. Hare Krishna!
Join
electric potential
i dont really understand how that equation in red square came i get like half of what is going on but the qi and q part nope
Combi problem (with number theory I suppose?)
This is not relevant for jee but the first part was easy but the second one seems to elude me, case-working for small numbers didn't help either.
Force by wall
i am ok in first part but the second part? i dont get how to get the forces, one will be contact force, and there will be gravi also but how?
pressure
the given ans is c
but my logic is wont the water put some force on the block making the force more?...
Current electricity
I often have trouble in using KCL in such qs. While writing the eqn, the teacher directly equated the current passing through each of the resistors to 0. I don't get why this works. I've seen this being used in other qs too... this maybe really silly, but yeah. Like why do we ignore the current through the cells?
And another question. In such qs what's the fastest method to solve them out of the many options available (kvl, kcl, superposn, thevenin...)>...
specific gravity
i dont understand how the specific gravity stuff let us calculate the amount it is submersed
Buoyant + gravitational elongation
i dont understand how the forces are going , like how is it going, i have picture as to what forces are there and what directions are there but i dont get how to get it quantitatively
isme formula kya use krna hai
i know normality = gram equivalent/ volume and molarity* n factor but kaise use kru
rotational dynamics, rolling concept
hi!! in this diagram, before impact, we see that the ball is rotating in a clockwise direction. so during impact, wouldn't the ball exert a centripetal force back on the wall? (the wall is rough for context) thanks!!
