Introducing Flux
Trending Questions
Two identical conducting spheres with negligible volume have and charges, respectively. They are brought into contact and then separated by a distance of . The electrostatic force acting between the spheres is _______. [Given : SI unit]
Consider a uniform electric field E=3×103^i N/C.
(a) What is the flux of this field through a square of 10 cm on a side whose plane is parallel to the yz plane?
(b) What is the flux through the same square if the normal to its plane makes a 60° angle with the x-axis?
What is the net flux of the uniform electric field through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?
- E=σ2ε0(1−Z(Z2+R2)1/2)
- E=σ2ε0(1(Z2+R2)+1Z2)
- E=2ε0σ(1(Z2+R2)1/2+Z)
- E=σ2ε0(1+Z(Z2+R2)1/2)
Two isolated conducting spheres and of radius and have and charges, respectively, and are at a large distance from each other. They are now connected by a conducting wire. A long time after this is done the charges on and are respectively.
- (Q/q)=(4/1)
- (Q/q)=(2/1)
- (Q/q)=(3/1)
- (Q/q)=(5/1)
The electric field in a region is given by →E=35E0→j with E0=2.0×103NC−1. Find the flux of this field through a rectangular surface of area 0.2m2 parallel to the y-z plane.
In an NPN transistor the collector current is . If of electrons reach collector its base current in is?
A large plane charge sheet having surface charge density σ=2.0×10−6 Cm−2 lies in the x-y plane. Find the flux of the electric field through a circular area of radius 1 cm lying completely in the region where x, y, z are all positive and with its normal making an angle of 60∘ with the z-axis. (Given that the field due to infinite charged sheet is σ2ϵ0 where σ = surface charge density. Also note that it is perpendicular to the sheet and is constant for all points from the sheet.)
35 Nm2C
35 CNm2
17.5 Nm2C
17.5 CNm2
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1351240/original_poc1.png)
- 8
- 2
- 6
- 4
Two non-conducting spheres of radii R1 and R2 and carrying uniform volume charge densities +ρ and −ρ, respectively, are placed such that they partially overlap, as shown in the figure. At all points in the overlapping region,
![](https://byjus-answer-creation.s3.amazonaws.com/uploads/5730Physics_62ba6c1cb50cd1a426ef6b32.jpg_img_upload_solution_2022-07-09 07:26:51.957061.png)
The electrostatic field is zero
The electrostatic potential is constant
The electrostatic field is constant in magnitude
The electrostatic field has the same direction
Electric flux: scalar or a vector quantity?
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1724603/original_new6.png)