A cubical region of side a has its centre at the origin. It encloses three fixed point charges, -q
at (0, -a/4, 0), +3q at (0, 0, 0) and -q at (0, +a/4 ,0). Choose the correct option(s):

Name: A cubical region of side a has its centre at the origin. It encloses three fixed point charges, - qat (0, - a/4, 0), + 3q at (0, 0, 0) and - q at (0, + a/4 ,0). Choose the correct option(s):
Uploaded: 2020-01-06
Description: Click here👆to get an answer to your question ✍️ A cubical region of side a has its centre at the origin. It encloses three fixed point charges, - qat (0, - a/4, 0), + 3q at (0, 0, 0) and - q at (0, + a/4 ,0). Choose the correct option(s):

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Answer 1

$Net flux through cube$ = $\frac{- q + 3 q - q}{ϵ _{o}} = \frac{q}{ϵ _{o}}$
$Due to the same area flux passing through$ $x = \frac{- a}{2}, y = \frac{a}{2}$ $a n d$ $z = \frac{a}{2}$ $is same$

Answer 2

Net flux through cube

=

\frac{- q + 3 q - q}{ϵ _{o}} = \frac{q}{ϵ _{o}}

Due to the same area flux passing through

x = \frac{- a}{2}, y = \frac{a}{2}

a n d

z = \frac{a}{2}

is same

A cubical region of side a has its centre at the origin. It encloses three fixed point charges, -q
at (0, -a/4, 0), +3q at (0, 0, 0) and -q at (0, +a/4 ,0). Choose the correct option(s):

The net electric flux crossing the plane x = +a/2 is equal to the net electric flux crossing the plane x = -a/2

The net electric crossing the plane y = +a/2 is more than the net electric flux crossing the plane y = -a/2

The net electric flux crossing the entire region is $\frac{q}{ε _{o}}$

The net electric flux crossing the piane z = +a/ 2 is equal to the riet electric flux crossing the piane x = +a/2

$Net flux through cube$ = $\frac{- q + 3 q - q}{ϵ _{o}} = \frac{q}{ϵ _{o}}$
$Due to the same area flux passing through$ $x = \frac{- a}{2}, y = \frac{a}{2}$ $a n d$ $z = \frac{a}{2}$ $is same$

A charge q is placed at the centre of a cubical box of side a with top open. The flux of electric field through the surface of the cubical box is:

Mark the correct option(s)

If the flux of the electric field through a closed surface is zero, then (more than option may be correct)

If electric field in a region is radially outward with magnitude $E = A r$ , the charge contained in a sphere of radius $r$ centred at the origin is :

The flux crossing the three symmetric faces which are close to the point charge will be if point charge is just outside of the cube

Revise with Concepts

Gauss Law

A cubical region of side a has its centre at the origin. It encloses three fixed point charges, -q at (0, -a/4, 0), +3q at (0, 0, 0) and -q at (0, +a/4 ,0). Choose the correct option(s):

The net electric flux crossing the plane x = +a/2 is equal to the net electric flux crossing the plane x = -a/2

The net electric crossing the plane y = +a/2 is more than the net electric flux crossing the plane y = -a/2

The net electric flux crossing the entire region is εo​q​

The net electric flux crossing the piane z = +a/ 2 is equal to the riet electric flux crossing the piane x = +a/2

Net flux through cube= ϵo​−q+3q−q​=ϵo​q​ Due to the same area flux passing through x=2−a​,y=2a​ and z=2a​ is same

A charge q is placed at the centre of a cubical box of side a with top open. The flux of electric field through the surface of the cubical box is:

Mark the correct option(s)

If the flux of the electric field through a closed surface is zero, then (more than option may be correct)

If electric field in a region is radially outward with magnitude E=Ar, the charge contained in a sphere of radius r centred at the origin is :

The flux crossing the three symmetric faces which are close to the point charge will be if point charge is just outside of the cube

Revise with Concepts

Gauss Law

A cubical region of side a has its centre at the origin. It encloses three fixed point charges, -q
at (0, -a/4, 0), +3q at (0, 0, 0) and -q at (0, +a/4 ,0). Choose the correct option(s):

The net electric flux crossing the entire region is $\frac{q}{ε _{o}}$

$Net flux through cube$ = $\frac{- q + 3 q - q}{ϵ _{o}} = \frac{q}{ϵ _{o}}$
$Due to the same area flux passing through$ $x = \frac{- a}{2}, y = \frac{a}{2}$ $a n d$ $z = \frac{a}{2}$ $is same$

If electric field in a region is radially outward with magnitude $E = A r$ , the charge contained in a sphere of radius $r$ centred at the origin is :