Weird flux but ok | JEE electric field exam questions

In this video I work through two JEE Advanced exam questions on electric flux. The first problem is from 2018 paper 2 Q3, and the second question is 2017 paper 2 Q10. JEE is the Indian entrance exam system for engineering universities.

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What's grey, crispy and hangs from the ceiling?






An amateur electrician.

[epistimi]

3 reasons why she makes videos on IIT questions :
a) IIT is easily one of the toughest exam in terms of vast questions and time management with so much competition !!
b) IIT questions are in english unlike Koreans or others exam ..question are not available in english easily !!
c) She loves making videos on tough questions and solve it and yeah there are a lot of Indians who support her :)

* A hidden Extra reason is views and subs are more if you make videos on India !!
HER SMILE IS CUTE THOUGH :) 😅😍

[DD_]

Human rights should consider that solving these questions comes under the category " Child Labor"

[kanhatiwari]

I have cleared iit in 2018 and this was the question that confused me but I figured it out at last .
Keep up the channel :)

[beepboopboop]

It's been a while since I've had an EMag class (since I changed majors from EE to math :P) so it's really cool seeing videos like this and realizing how much I learned and still remember a little. These problems seem pretty intuitive as long as you are familiar Gauss's law

[sensibleorange]

That's a fancy way to hold a pen ;)

[m_riatik]

can we get an F in the chat for our indian friends who have to go through this

[girigupta]

the second question can be solved easily using the concept of solid angles. It will not require to use tedious integration

[eshh]

Being a Jee aspirant, I just have to say that I would never use the integration technique in exam due to time constraints. Comcept of solid angle is much more direct and lets you verify the option directly!

[henriqueramos]

Hi! There are two universities in Brazil called ITA( Airforce's Technological Institute) and IME (Militar Institute of Engineering) wich are known for having hard admission exams ( thankfully not as hard as JEE ).
I love your videos and watching an unboxing of those exams would be very enjoyable :)
Congratulations for the good work!

[raghavanshsingla]

Another way to find flux through the disc in second question is by making a cone with that disc as a base and vertex as the centre of that point charge. Since flux through curved surface of cone would be zero therefore net flux through the gaussian surface would be our answer.
And to find net charge inside closed surface we would have to take a part of that charge inside the closed surface. find the ratio of the volume spherical sector of the charge to the total volume of that charge and charge would also be divided in that ratio.

[abhishekdudeja]

Thumbnail is lit! Haha
Waiting for the next Beauty Of Mathematics episode tibees :D

[kaustubha]

This feels easy because she is solving for you. When you actually start doing the problem yourself before her and end up with the right result you can say that you have a higher probability of cracking the Jee exam. 😂

[shankarseal]

Difference in australian and indian education - every trig student in india knows the sine and cosine of 30, 45, 60 and 90 degrees by heart :-)

[adivp]

Thank you for this brilliant video. Just on a side note, if someone's going to take the JEE, they probably know what sin 60° is 😅

[DanielRodriguez-hryw]

Just started learning integration in Survey of Calculus for my university. The math covered here blows my mind haha.

[EpicGamer-bibk]

Coming from a kid who qualified this exam this year, the iit coachings teach direct formulas to be used while solving the questions, so basically the first question was just a one-liner. The 3rd one was okayish.

[Rajkumar-yvlf]

We don't waste time in calculating sin60, since class 10th, it's simple and can be solved in mind easily

[mihirsrivastava]

1:48 i think it is surface integral rather than line integral

[rithwik]

I must say....your approach on solving problems is so good...like, you only use basic formulas to solve these questions...in most places here, they try to rote memorize hundreds of formulas...