why gradΦ (∇Φ) perpendicular to the surface?| it's physics significance.
welcome all of you to my channel ePhysics for you.
This video only on scalar and vector or vector analysis chapter.
In this vedio I have explained in detail why gradΦ always perpendicular to the surface and it's physical significance and also it's practical application.
I have tried to present it in a very simple way and with simple words so that you can easily understand.
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