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Displacement Current

S1 and S2 are...

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S1 and S2 are two hollow concentric spheres enclosing charges Q and 2Q respectively as shown below. i) What is the ratio of the electric flux through S1 and S2? ii) How will the electric flux through S1 change, if a medium of dielectric constant 5 is introduced in the space inside S1 instead of air?

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Q. Consider two hollow concentric spheres,

S_{1}

S_{2}

, enclosing charges

2 Q

4 Q

respectively as shown in the figure. (i) Find out the ratio of the electric flux through them. (ii) How will the electric flux through the sphere

S_{1}

change if a medium of dielectric constant

^{'} ϵ r^{'}

is introduced in the space inside

S_{1}

in place of air? Deduce the necessary expression.

Q. (a) Deduce the expression for the torque acting on a dipole of dipole moment

\to p

in the presence of a uniform electric field

\to E

.
(b) Consider two hollow concentric sphere,

S_{1}

S_{2}

, enclosing charges 2Q and 4Q respectively as shown in the figure. (i) Find out the ratio of the electric flux through them. (ii) How will the electric flux through the sphere

S_{1}

change if a medium of dielectric constant '

ϵ_{r}

' is introduced in the space inside

S_{1}

in place of air?
Deduce the necessary expression.

S_{1}

S_{2}

are two hollow concentric sphere enclosing charge Q and 2Q, respectively, as shown in fig. What is the ratio of the electric flux leaving through the surface of

S_{2}

S_{1}

?

Q. What will be the electric flux through the sphere

S_{1}

if a medium of dielectric constant

ϵ_{r}

is introduced in the space inside

S_{1}

in place of air

S_{1}, S_{2}, S_{3}

are three concentric spherical shells, as shown in figure.

S_{1}

S_{2}

4 Q

8 Q

respectively, whereas

S_{3}

is uncharged. Find the ratio of the flux passing through

S_{1}

to that through

S_{3}

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