A: 正确
B: 错误
举一反三
- 中国大学MOOC: A conductor in electrostatic field is an equipotential body, any two points on the conductor have the same electric potential.
- If a conductor is in an electrostatic equilibrium, then the electric field inside it at any position is 0. A: 正确 B: 错误
- If a conductor is in an electrostatic equilibrium, then the electric field inside it at any position is 0.
- Which of the following statements about a conductor in the static case is not true导体在静电平衡下表述不正确的是 A: The conductor must be at the same electric potential B: The surface of the conductor is an equi-potential surface等势面 C: There can be an electric field within the conductor导体内 D: There can be no net charge within the conductor体内无净电荷
- On the ideal conductor surface, the relationship between the electric field lines and the conductor surface is A: the electric field lines is always pertendicular to the conductor surface. B: the electric field lines is always parallel to the conductor surface. C: there is no electri field lines exsited. D: unable to determine the relationship.
内容
- 0
5.On the ideal conductor surface, the relationship between the electric field line and the conductor surface is ( ) A: Vertical B: Parallel C: is zero D: not sure
- 1
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
- 2
1. What creates a magnetic field? More than one answer may be correct. A: a stationary object with electric charge B: a stationary conductor carrying electric current C: a difference in electric potential D: a charged capacitor disconnected from a battery and at rest
- 3
What creates a magnetic field? More than one answer may be correct. A: a<br/>stationary object with electric charge B: a stationary conductor carrying electric current C: a<br/>difference in electric potential D: a<br/>charged capacitor disconnected from a battery and at rest
- 4
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.