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Electrostatics question

2016 · 10 Apr · Shift 1 · Q55

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JEE Main
Physics
Electrostatics
2016 · 10 Apr · Shift 1 · Q55

Electrostatics question

2016 · 10 Apr · Shift 1 · Q55

JEE MainPhysicsElectrostaticsMCQ+4 / −1

Within a spherical charge distribution of charge density

\rho

(r), N equipotential surfaces of potential V0, V0 +

\Delta

V, V0 + 2

\Delta

V, .......... V0 + N

\Delta

V (

\Delta

V > 0), are drawn and have increasing radii r0, r1, r2,..........rN, respectively. If the difference in the radii of the surfaces is constant for all values of V0 and

\Delta

V then :

A
$\rho$ (r) $\alpha$ r
B
$\rho$ (r) = constant
C
$\rho$ (r) $\alpha {1 \over r}$
D
$\rho$ (r) $\alpha {1 \over {{r^2}}}$

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