Charge of 2C is placed at the centre of a cube of volume 8 cm^3. What is the electric flux passing through one face?

### Asked by hitanshu04 | 27th May, 2021, 07:33: PM

Expert Answer:

###
Volume og given cube is 8 cm^{3} , hence side length of cube is 2 cm.
By Gauss theorem , electric flux over the closed surface is enclosed charge within the closed surface divided by permittivity of the medium.
If the medium inside the cube is air or vaccum , then total Electric flux φ over the closed surface of cube is given by
φ = Q / ε_{o} = 2 / ( 8.854 × 10^{-12} ) = 2.259 × 10^{11 }N C^{-1} m^{2}
Electric flux passing through one face = ( 2.259 × 10^{11} ) / 6 = 3.765 × 10^{10} N C^{-1} m^{2}

^{3}, hence side length of cube is 2 cm.

_{o}= 2 / ( 8.854 × 10

^{-12}) = 2.259 × 10

^{11 }N C

^{-1}m

^{2}

^{11}) / 6 = 3.765 × 10

^{10}N C

^{-1}m

^{2}

### Answered by Thiyagarajan K | 27th May, 2021, 08:59: PM

## Concept Videos

- The electric field components in are Ex = A+Bx, Ey = Ez = 0, in which A = 800 N/C , B= 100 N/C-m. Calculate (a) the flux through the cube (b) the charge within the cube. Assume that a = 0.1 m
- Can we use the formula electric flux is equal to E×A cos theta
- what is flux
- Unit of Electric flux_?
- A point charge is placed at the centre of a closed Gaussian spherical surface of radius r. Electric flux passing through the surface is Φ. How is the electric flux Φ through the surface affected when the following changes are made in turn: (i) The spherical surface is replaced by a cylindrical surface of the same radius? (ii) The point charge is replaced by an electric dipole? Justify your answer in each case.
- Plzz explain
- Image has been uploaded below. Please solve bit i.
- A CHARGE IS PLACED AT THE CORNER OF A CUBE. WHAT IS THE NET FLUX COMING FROM THE CUBE?
- A square is placed in a uniform electric field E parallel to the horizontal such that the plane of the square makes an angle of 30° with the field.If the side of the square is a,find the flux through the square wire.

### Kindly Sign up for a personalised experience

- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions

#### Sign Up

#### Verify mobile number

Enter the OTP sent to your number

Change