#Samal's Physics channel was created on 10.03.2020. Please like, share & subscribe. 👍💐❤️
( This is from my 35 years of teaching experience in Physics)
There are infinite paths in every life. But the right path gives success. The right path is not the easiest 🕐
#All the videos will give you tools to learn😊

If F=(4x+3y+pz)i+(qx-y+z)j+(2x+sy+z)k is irrotational, find values of p,q and s
6:06
If F=(4x+3y+pz)i+(qx-y+z)j+(2x+sy+z)k is irrotational, find values of p,q and s
Show that position vector 'r' is irrotational
3:38
Show that position vector 'r' is irrotational
If f & g are scalar functions then prove that (grad f × grad g) is solenoidal
6:54
If f & g are scalar functions then prove that (grad f × grad g) is solenoidal
Show that r^n(r) is solenoidal vector if n= -3
5:02
Show that r^n(r) is solenoidal vector if n= -3
If 'a' constant vector, 'r' position vector show that a×r is solenoidal vector
5:10
If 'a' constant vector, 'r' position vector show that a×r is solenoidal vector
Find the value of 'a' if (ax^2y+yz)i + (xy^2-xz^2)j + (2xyz-2x^2y^2)k is solenoidal
3:28
Find the value of 'a' if (ax^2y+yz)i + (xy^2-xz^2)j + (2xyz-2x^2y^2)k is solenoidal
Show that F=(x+3y)i+(y-3z)j+(x-2z)k is solenoidal
3:14
Show that F=(x+3y)i+(y-3z)j+(x-2z)k is solenoidal
If F=2xi+3yj+5zk and φ=2xyz find div(φF) at (1,1,1)
3:29
If F=2xi+3yj+5zk and φ=2xyz find div(φF) at (1,1,1)
Find div r, where r is any position vector
2:03
Find div r, where r is any position vector
#div(φA)=φdivA+A.gradφ, φ=scalar field, A=vector field
6:10
#div(φA)=φdivA+A.gradφ, φ=scalar field, A=vector field
#div(A+B)=divA+divB #divergence property #vector #functions A,B
4:57
#div(A+B)=divA+divB #divergence property #vector #functions A,B
The direction of ∇f for a scalar field f=(1/2)x^2 - xy +1/2(z^2)at the point (1,1,2)
3:00
The direction of ∇f for a scalar field f=(1/2)x^2 - xy +1/2(z^2)at the point (1,1,2)
In what direction from the point (2,1,1) is the directional derivative of φ=x^2yz is maximum
2:44
In what direction from the point (2,1,1) is the directional derivative of φ=x^2yz is maximum
#directionalderivative of φ=xyz at the point (-1,1,1) along i-j+3k
3:54
#directionalderivative of φ=xyz at the point (-1,1,1) along i-j+3k
#directional_derivative of φ=x^2yz+4xz^2 at the point (1,-2,-1) in the direction PQ is
5:14
#directional_derivative of φ=x^2yz+4xz^2 at the point (1,-2,-1) in the direction PQ is
#directional_derivative of φ(x,y,z)=x^2+y^2+z^2 at the point (1,1,1) in the direction i-k is
3:10
#directional_derivative of φ(x,y,z)=x^2+y^2+z^2 at the point (1,1,1) in the direction i-k is
#directional_derivative of f=1/√(x^2+y^2+z^2) at (3,0,4) in the direction of a=i+j+k
6:15
#directional_derivative of f=1/√(x^2+y^2+z^2) at (3,0,4) in the direction of a=i+j+k
#find_directional_derivative φ=x^2y^2+y^2z^2+x^2z^2 at(11-2) tangent x=e^-t,y=2sint+1,z=1-cost, t=0
8:14
#find_directional_derivative φ=x^2y^2+y^2z^2+x^2z^2 at(11-2) tangent x=e^-t,y=2sint+1,z=1-cost, t=0
Find a,b,c so that directional derivative φ=axy^2+cz^2x^3+byz at (1,2,-1)max value 64 parallel to z
7:50
Find a,b,c so that directional derivative φ=axy^2+cz^2x^3+byz at (1,2,-1)max value 64 parallel to z
Find directional derivative of f=2e^(2x-y+z) at (1,3,1) in the direction towards the point (2,1,3)
7:32
Find directional derivative of f=2e^(2x-y+z) at (1,3,1) in the direction towards the point (2,1,3)
Distinguish between directional derivative and normal derivative. Give examples
5:57
Distinguish between directional derivative and normal derivative. Give examples
What is the greatest rate of increase of u=xyz^2 at (1,0,3)
3:10
What is the greatest rate of increase of u=xyz^2 at (1,0,3)
Space temp T=x^2+y^2-z. In which direction mosquito at (1,1,2) will fly to warm up soon
3:03
Space temp T=x^2+y^2-z. In which direction mosquito at (1,1,2) will fly to warm up soon
In what direction from (3,1,-2) is the directional derivative of u=x^2y^2z^4 maximum?Find magnitude
4:30
In what direction from (3,1,-2) is the directional derivative of u=x^2y^2z^4 maximum?Find magnitude
Find directional derivative of φ= xyz in the direction of outer normal to the surface x=xy at(3,1,3)
5:25
Find directional derivative of φ= xyz in the direction of outer normal to the surface x=xy at(3,1,3)
Find directional derivative of function xy^2+yz^3 at the point (1,-1,1) in direction (3,1,-1)
6:40
Find directional derivative of function xy^2+yz^3 at the point (1,-1,1) in direction (3,1,-1)
Find directional derivative of f=(e^x)cosy at (2, π, 0) along a=2i+3j
4:46
Find directional derivative of f=(e^x)cosy at (2, π, 0) along a=2i+3j
Find directional derivative of f=xyz at (-1, 1,3) along a=i-2j+2k
4:30
Find directional derivative of f=xyz at (-1, 1,3) along a=i-2j+2k
Find the angle between the surfaces x^2+y^2+z^2=9 and z=x^2+y^2-3 at (2,-1,2)
5:40
Find the angle between the surfaces x^2+y^2+z^2=9 and z=x^2+y^2-3 at (2,-1,2)
Find the unit vector normal to the surface xy+yz+zx=3 at the point (1,1,1)
3:54
Find the unit vector normal to the surface xy+yz+zx=3 at the point (1,1,1)