led with that

By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. You have been successfully subscribed to the Grammarly blog. Beaming with pride, this is the inspiring moment heroic Frankie Sherwood led his beloved Newcastle United out in front of thousands of fans. In LEDs, as in other semiconductor devices such as transistors, the “terminals” are actually two semiconductor materials of different composition and electronic properties brought together to form a junction. In a surprise move, the coach is leading with the youngest members of the team for kickoff. Confusing Words Lead vs Led. Visible LEDs are used in many electronic devices as indicator lamps, in automobiles as rear-window and brake lights, and on billboards and signs as alphanumeric displays or even The p-n-type GaP:N layers represent nitrogen added to gallium phosphide to give green emission; the p-n-type GaAsP:N layers represent nitrogen added to gallium arsenide phosphide to give orange and yellow emission; and the p-type GaP:Zn,O layer represents zinc and oxygen added to gallium phosphide to give red emission. The brightness of an LED is directly dependent on how much current it draws. Infrared LEDs are employed in autofocus cameras and television remote controls and also as light sources in fibre-optic telecommunication systems. I think I’ve led a pretty happy life. It takes very few resources to make a mobile phone. It is the past tense of “lead” and means “guided,” “directed,” or “went through.” Examples: Genghis Khan led a huge army and expanded the Mongol Empire.

to tend to strike first with a particular fist—the right, the left, the best, etc.

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. The college senior led the campus tour. Led (which rhymes with head) is the past tense of the verb lead (which rhymes with need). In a flashlight, for example, a wire filament is connected to a battery through two terminals, one (the anode) bearing the negative electric charge and the other (the cathode) bearing the positive charge. Glass optical fibres suffer their lowest transmission losses in the infrared region at wavelengths of 1.3 and 1.55 micrometres. https://idioms.thefreedictionary.com/lead+with, 1. By varying the precise composition of the semiconductor, the wavelength (and therefore the colour) of the emitted light can be changed. "Led" (which rhymes with "red") is both the past and past participle form of the verb "lead" (which rhymes with "deed"). Visible LEDs are used in many electronic devices as indicator lamps, in automobiles as rear-window and brake lights, and on billboards and signs as alphanumeric displays or even full-colour posters. If the first sound is a vowel sound when the word is spoken, then we use "an" with it. Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, bring (someone or something) to a dead end, the webmaster's page for free fun content, Lead in the average Joe: no increase in cancer risk.

In this usage, a noun or pronoun can be used between "lead" and "with.".

Updates? Let us know if you have suggestions to improve this article (requires login). Lead is also the name of a certain type of metal. To match these transmission properties, LEDs are employed that are made of gallium indium arsenide phosphide layered on a substrate of indium phosphide. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox.

The exact composition of the material may be adjusted to emit energy precisely at 1.3 or 1.55 micrometres.

Light-emitting diode (LED) digital clock.

), Lead test kits simply detect the presence of lead in a sample of lead paint and test for the reaction of, "When the Europeans said industry must get rid of lead, they didn't say you must replace, 2002) previously studied the effects of gestational and lactational exposure of rats to, Many of the epidemiologic studies that relate, The commission did ask candle manufacturers to replace. That means two things. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Overview of various types of electric light, including incandescent, halogen, fluorescent, and LED. The brightness of the light observed from an LED depends on the power emitted by the LED and on the relative sensitivity of the eye at the emitted wavelength. The coach led with Walter as pitcher and Sam on first base. To begin (something) with someone or something. Omissions? Babar Azam led Pakistan’s fightback on day three with an unbeaten 90 as they went on to post 216 in their first innings following which rain played spoilsport restricting New Zealand’s second innings to just one delivery at stumps of the second Test in Hamilton. I just have never heard anyone say "LED" that way myself. LED, in electronics, a semiconductor device that emits infrared or visible light when charged with an electric current. Led definition is - past tense and past participle of lead When to use lead or led

Any LED can be used as a light source for a short-range fibre-optic transmission system—that is, over a distance of less than 100 metres (330 feet). These compounds are members of the so-called III-V group of semiconductors—that is, compounds made of elements listed in columns III and V of the periodic table.

To choose a particular athlete or group of athletes with whom to begin a competition or sporting event. Your next opponent tends to lead with his left, so you'll want to adapt your stance to be better able to dodge it. This article was most recently revised and updated by, https://www.britannica.com/technology/LED. The familiar lightbulb gives off light through incandescence, a phenomenon in which the heating of a wire filament by an electric current causes the wire to emit photons, the basic energy packets of light. The team is leading with their star batter.

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