Calculate charge enclosed in a non uniform electric field |Electric fields & charges | Khan Academy

Let's calculate the charge enclosed by a cylinder placed in a non uniform electric field. Since a cylinder is a closed surface, we can use Gauss's law to help us.

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Created by Mahesh Shenoy

[alirezanabavian]

I am a seasoned electronics engineer but I must admit you are the best instructor in this field ..I learn so much evey time I look up your videos

[ashutosh-kumar]

Thank you sir, watched it on 15th October 2021 at 23:39PM for the preparation of 12th Board term1 examination 2021-22.

[Exhilarated]

Tommorow my jee paper and i am watching your video 😀

[zayan]

Can somebody tell me where on earth did the charge come from? Is it the one causing the field or is it the consequence. Plus how do we know there will be charge inside and not outside?

[prashant]

Sir PLEASE EXPLAIN MISTAKE? In flux of the bottom surface, electric field direction is upwards and Area vector direction is downwards so the angle between them is 180 degree so Φ = 3× |-5|× -4πј X COS (180°)= = 60π, so total flux remains the same, please clear my doubt

[leviosa]

When E = 3 |y| (j^),
Net Φ = Φ₁+ Φ₂ + Φ₃
= -EA (θ = π) + EA (θ = 0) + 0 (θ= π/2) = 0
Thus, Q enc = Net Φ × ε = 0 × ε = 0

[Kejiiiiiiiiiiii]

i'mma watch all your videos
thanks alot 🤎