單項(xiàng)選擇題

The resistance of a conductor varies （）

A.directly as its length and inversely as its cross-sectional area
B.inversely as its length and directly as its cross-sectional area
C.directly as its length and directly as its cross-sectional area
D.inversely as its length and inversely as its cross-sectional area

你可能感興趣的試題

單項(xiàng)選擇題

A switchboard for an AC electrical system requires the use of which of the following devices（）.

A.Frequency meter
B.Ohmmeter
C.Induction voltage regulator
D.Current transformer governor

單項(xiàng)選擇題

The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the （）.

A.bridge control panel
B.disconnect links
C.governor relay box
D.main switchboard

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

The resistance of a conductor varies （）

你可能感興趣的試題

A switchboard for an AC electrical system requires the use of which of the following devices（）.

The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the （）.

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久