Gauss's Law Flashcards
1
Q
What is the formula of area vector?
A
A= An
2
Q
What is the magnitude and direction of area vector?
A
Magnitude is value of area and the direction is towards the observer
3
Q
By which method can we find the direction of area vector?
A
Right hand thumb rule/ Right hand curl rule
4
Q
Formula of solid angle
A
dΩ=(ds cos θ)/ r^2
5
Q
Value of solid angle
A
4π steradians
6
Q
Define flux and give symbol
A
The number of electric field lines passing through a given surface is electric flux.
Symbol= Φ
7
Q
Give flux when
- A is parallel to v
- A is perpendicular to v
- A and v has an angle θ
A
- Φ=Av
- 0
- Av cosθ
8
Q
How can we find the strength of ΦE
A
By no of lines passing through the area
