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.
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.
举一反三
- 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.
- In the vector field, the vector line is such a curve where ( ) A: The tangent direction at each point on it is orthogonal to the direction of the vector field at that point. B: The tangent direction at each point on it is parallel to the direction of the vector field at that point. C: The value of each point on it is equal to the value of the vector field at that point. D: The vector line is the geometric curve of the vector field function.
- 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.
- The point pressure of static fluid has nothing to do with ( ) A: Position B: Direction C: Density of fluid
- From Angela’s point of view, customer satisfaction has nothing to do with potential customers.