Question

For a spherical capacitor shown, at which points the electric field will be zero? (R is the distance of point from centre O))

Answer 1

Answer:

The electric field of a hollow spherical capacitor is localised in between inner and outer surfaces of the spherical conductor. Therefore, at point r1 < r < r2, the electric field will not be zero.

Explanation:

ok

Answer 2

Answer: As the points Are r >$R_{2}$  $r < R_{1}$.

Explanation: As for the spherical capacitor, at which points the electric field will be zero,

As $\phi net = \phi \overrightarrow{\varepsilon }. \overrightarrow{ds}=\frac{Q er}{\varepsilon {_{0}}^{}}$

As by point I,

$\int \varepsilon ds cos\theta =\frac{O}{\varepsilon _{0}^{}}$

Where $\varepsilon =0$

As the electric field must be zero,

So now by point II,

$\int \varepsilon d s cos \theta =\frac{0}{\varepsilon {_{0}}^{}}$

$\varepsilon =0$

So now by points Are r >$R_{2}$  $r < R_{1}$

As the both options are correct.

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