# A Small Sphere of Radius R1 And Charge Q1 Is Enclosed by a Spherical Shell of Radius R2 And Charge Q2. Show that If Q1 Is Positive, Charge Will Necessarily Flow from the Sphere to the Shell - Physics

A small sphere of radius r1 and charge q1 is enclosed by a spherical shell of radius r2 and charge q2. Show that if q1 is positive, charge will necessarily flow from the sphere to the shell (when the two are connected by a wire) no matter what the charge q2 on the shell is.

#### Solution

According to Gauss’s law, the electric field between a sphere and a shell is determined by the charge q1 on a small sphere. Hence, the potential difference, V, between the sphere and the shell is independent of charge q2. For positive charge q1, the potential difference V is always positive.

Concept: Van De Graaff Generator
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Chapter 2: Electrostatic Potential and Capacitance - Exercise [Page 91]

#### APPEARS IN

NCERT Physics Class 12
Chapter 2 Electrostatic Potential and Capacitance
Exercise | Q 2.35 | Page 91
NCERT Physics Class 12
Chapter 2 Electrostatic Potential and Capacitance
Exercise | Q 36 | Page 92
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