Ohm

(noun.) German physicist who formulated Ohm's law (1787-1854).

(noun.) a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere.

校对:凯尔西

• Tried a 6-ohm spool add a 200-ohm. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• As regards loss due to resistance, there is a well-known law for determining it, based on Ohm's law. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• It is stated that 'the internal resistance of the armature' of this machine 'is only 1/2 ohm. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Ampere would be the quantity, or volume unit, or cross section of the hose pipe, and the ohm would be the unit of frictional resistance. Edward W. Byrn. 十九世纪发明进展.
• An approximate ohm for rough work in the laboratory may be made by winding 9 feet 5 inches of number 30 copper wire on a spool or arranging it in any other convenient form. 伯莎M.克拉克. 科学通论.
• What I was after was getting a high-resistance lamp, and I made one that way that worked up to forty ohms. 鲁伯特·萨金特·荷兰. 历史性发明.
• Or the same given battery will bring a wire whose total resistance is 4 ohms to the same temperature as straight wire. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• It lit up, and in the first few breathless minutes we measured its resistance quickly and found it was 275 ohms--all we wanted. 鲁伯特·萨金特·荷兰. 历史性发明.
• We put in resistance up to 500,000 ohms, and the twitching was still perceptible. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• By increasing the battery from eight to twelve cells we get a spark when the vibrating magnet is shunted with 3 ohms. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

编辑:罗达