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A hollow metal sphere of radius carries a uniform charge . What is the electric field at a distance from the center?
0
A thin spherical conducting shell of radius carries a net charge . Which graph best represents the electric field strength as a function of the distance from the center?
Graph of E increasing linearly with r
Graph of E constant for all r
Graph showing E=0 for r<R and E decreasing as 1/r^2 for r>R
Graph of E=0 for r>R and E constant for r<R
The angle between the electric lines of force and the equipotential surface is:
0Β°
45Β°
90Β°
180Β°
If the electric field lines are parallel to an imagined surface, what can you infer about the potential on that surface?
The surface is an equipotential surface.
The potential increases along the surface.
The potential decreases along the surface.
The potential varies randomly on the surface.
Which statement best describes the relationship between electric field lines and equipotential surfaces?
They are always parallel.
They are always perpendicular.
They intersect at 45Β°.
They can intersect at any angle.
If the angle between the electric field lines and a surface is less than 90Β°, can that surface be an equipotential surface?
Yes
No
Maybe
Depends on the charge
A point charge is kept at the origin. The magnitude of strength of electric field at (4m, 3m) is
0
