如图,理想变压器原、副线圈匝数比为20∶1,两个标有"12,6"的小灯泡并联在副线圈的两端。当两灯泡都正常工作时,原线圈中电压表和电流表(可视为理想的)的示数分别是()
A. | 120 ,0.10 | B. | 240 ,0.025 |
C. | 120 ,0.05 | D. | 240 ,0.05 |
相关知识点
如图,理想变压器原、副线圈匝数比为20∶1,两个标有"12,6"的小灯泡并联在副线圈的两端。当两灯泡都正常工作时,原线圈中电压表和电流表(可视为理想的)的示数分别是()
A. | 120 ,0.10 | B. | 240 ,0.025 |
C. | 120 ,0.05 | D. | 240 ,0.05 |
试题篮
()