A capacitor(电容器) is a device consisting of two conductors(导体) separated by a non-conductor.

对于下面问句回答正确的是： A: Non,iln’aimeparlerpasfrançais. B: Non,iln’aimepasparlefrançais. C: Non,ilAimeneparlerpasfrançais. D: Non,iln’aimepasparlerfrançais.

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.

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

When these electromagnetic waves escape from the conductor into space, they are said to be radiated by the conductor, hence the name radio waves.

—Ya-t-ildeschaises?—Non,____________.

根据Disruptive theory,创新有()。 A: Disruptive B: non Disruptive C: Disruptive和non Disruptive都不对 D: Disruptive和non Disruptive都选

The train conductor ______ our tickets.

The magnentic field is generated by A: voltage applied to the conductor B: current through the conductor C: charge shifts D: permanent magnet

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.