Question

The electric charges are disturbed inside of a sphere. What would happen to the net electric flux through the surface of that sphere when the radius is doubled? Is is

a) doubled

b) halved

c) remain the same

or d) does it increased by a factor of four

When a conductor is in electro static equilibrium, any axcess charge on a conductor

a)cannot be detected

B)is on the surface

c) is fixed in space

d)is evenly distributed

or e) is in the center

A 6 ^. 10^-4 C charge is evenly distributed in a spherical volume of diameter 6 m. What is the volume charge density in C/m³?

a) 5.3 ^. 10^-2

b)1.33 ^. 10^-6

c)5.3 ^. 10^-6

or d) 6.63 ^. 10^-7

Answer 1

According to Gaurs's law, the net electric flux through a closed surface is, de renc el from the above equation, the net electric flux is independent of the radius of the erphone. Hence, even when the radius is doubled, the net eledric flux through the surface of the isphere remains unchanged. Hence, the corred option is cc)]. ahe excess charge on the conductor always resides on its surface. So, when the conductor is in electrostatic equilibrium, the excess charge resides of on the swyace of the conductor. Efence, the correct option is [(b)].

- the volume charge density is, T R= = 39 40 (4} = 69 od 6 (6x1042) 0 (67)3 = 0.053 x 104 cm = 513x1019 cl me. herefore, the correct option is (CC)] 10