Positive SSL
1 單相變壓器一次側繞組為N1 匝,二次側繞組有N2 匝。假設此為理想變壓器,在二次側接有負載電阻R,若將此負載換算為一次側之等效電阻,其值為何? 95 統測
A (N2N1)R
B (N2N1)2R
C (N1N2)R
D (N1N2)2R