如圖所示,白熾燈和電容器串聯(lián)后接在交流電源的兩端,當(dāng)交流電源的頻率增大時(shí)( )                               

                                                                                                           

    A. 電容器電容增大       B. 電容器電容減小

    C. 電燈變暗                  D.     電燈變亮

                                                                                                                                    

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