| 释义 |
ca·pac·i·tor
\kəˈpasəd.ə(r), -ətə-\ noun
(-s)
Etymology: capacity (I) + -or
: a device giving large capacitance or desired values of capacitance usually consisting of conducting plates or foils separated by thin layers of dielectric (as air, paraffin paper, or mica), the plates on opposite sides of the dielectric layers being oppositely charged by a source of voltage and the electrical energy of the charged system being stored in the polarized dielectric with the capacitance proportional to the area and dielectric constant of the dielectric layer and inversely proportional to its thickness — called also condenser |