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
A: Vertical
B: Parallel
C: is zero
D: not sure
A
举一反三
- 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.
- There is no magnetic field in an ideal conductor, but there is a magnetic field inside because of the surface current。
- On the surface of a perfect conductor, the normal component of the electric displacement vector is A: continuous with the normal component of the electric displacement vector inside the conductor B: uncertain C: equal to the surface density of free charge on the conductor surface. D: equal to zero
- 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
- The electric potential inside a charged solid spherical conductor in equilibrium A: is always zero. B: is constant and equal to its value at the surface. C: decreases from its value at the surface to a value of zero at the center. D: increases from its value at the surface to a value at the center that is a multiple of the potential at the surface
内容
- 0
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.
- 1
If a conductor is in an electrostatic equilibrium, then the electric field inside it at any position is 0.
- 2
A point charge q is placed inside a cavity within a conductor. The conductor is electrically neutral and is isolated . The total charge on the outer surface of the conductor must be ______.
- 3
If there is no charge inside the Gaussian surface, the field [img=14x24]180356c02c2f797.png[/img] on the surface must be zero everywhere.
- 4
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