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What is an inductor? How is the inductance
related to the physical properties of the
coil?
什么是电感？电感如何与线圈的物理特性相关联？
How do you calculate the inductance of
a solenoid? ... a toroid?
如何计算螺线管的电感？……环形线圈？
Use Faraday's law to relate the induced
emf across a coil to its inductance.
利用法拉第定律将线圈中的感应电动势与其电感联系起来。
Describe the buildup of current in an inductor
when it is connected to a battery. Describe
the decay of current when the battery is
removed.
当电感器连接到电池时，描述电流的建立过程。当电池被移除时，描述电流的衰减过程。
Describe how energy is stored in an
inductor which has current flowing in it.
描述电流通过电感线圈时，能量是如何储存的。
How does the energy density in a coil
depend upon the magnetic field?
螺线管中的能量密度如何依赖于磁场？
What is mutual inductance and how does
it compare with self-inductance?
互感是什么，它与自感相比如何？
What useful tasks can be accomplished by a
transformer? What are the limitations on the
power output of a transformer?
变压器能完成哪些有用的任务？变压器的功率输出有哪些限制？
What is the principle of operation of
a metal detector?
金属探测器的工作原理是什么？
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