Which statement as follows is right?
A: The potential equals everywhere the magnitude of electric field intensity is equal.
B: The magnitude of electric field intensity equals everywhere the potential is equal.
C: The potential must be high where the magnitude of electric field intensity is great.
D: The potential is not necessarily zero where the magnitude of electric field equals zero.
A: The potential equals everywhere the magnitude of electric field intensity is equal.
B: The magnitude of electric field intensity equals everywhere the potential is equal.
C: The potential must be high where the magnitude of electric field intensity is great.
D: The potential is not necessarily zero where the magnitude of electric field equals zero.
举一反三
- Both electric field E and electric potential V can describe the characteristics of a field. If the electric potential at a certain point is zero, the electric field at that point has to be zero.
- 电场线处处平行的区域为什么是匀强电场？Why is the area where the Electric Field Line is parallel everywhere Uniform Electric Field?
- Which is false? A: Streamlines and equipotential surfaces are perpendicular everywhere. B: Streamlines point from the position with lower potential to the position with higher potential. C: Streamlines do not intersect. D: The tangential direction of the streamline is the direction of the electric field intensity at the point.
- The flux of electric field intensity E through a closed surface is equal to zero, which means in the surface A: there are more positive charges than negative charges. B: there are more negative charges than positive charges. C: there are the same quantity of the positive charges and negative charges. D: there is no polarized chargeharge.
- What creates a magnetic field? More than one answer may be correct. ( ) A: a stationary object with electric charge B: a charged capacitor disconnected from a battery and at rest C: a stationary conductor carrying electric current D: a difference in electric potential