直流电动机外加电枢电压和励磁电流均为额定值,负载转矩为常数,nN为额定转 速。当电枢电路外串附加电阻R逐渐加大,电动机堵转时,电动机转速n的状况符合下列 ...

作者: rantiku 人气: - 评论: 0
问题 直流电动机外加电枢电压和励磁电流均为额定值,负载转矩为常数,nN为额定转 速。当电枢电路外串附加电阻R逐渐加大,电动机堵转时,电动机转速n的状况符合下列 ()数学表达式。
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答案 C
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