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Flashlights

Usually battery powered, flashlights are a portable means of creating artificial light. They allow a person safer navigation through darkened areas.

687 Questions

What is the beam of a flashlight and the flash of a camera?

The beam of a flashlight (also known as a torch) is the cone where the light shines.

A camera flash is a device that emits a brief intense pulse of light which can help to take a picture, particularly in poor light.

Where does the light go as you focus the flashlight to chest?

The light is primarily absorbed by your clothing (or skin) and turned into heat. The only difference is that when held closely against you, the light from the the flash-light doesn't scatter, and is concentrated in a small area.

The light that is reflected from your body surface back towards the bulb hits the reflector and bounces back onto your body. Due to losses in the bulb, glass and reflector, all of the light is converted to heat at some point, some in your clothing or body surface, and some in the flash-light.

With a strong enough flash-light, you can feel heat absorbed through your clothing.

What is the functions of led flashlight?

same as any other flashlight, So you can see better in the dark. Since the power consumption of LED is far roo less for the same lighting condition, battery life is more.

Why is a flashlight called a flashlight if it does not flash?

The origin is the fact that early batteries were so weak and the current draw of the lamp was very high. So could only turn the flashlight on for an instant before the batteries would wear out....hence flash of light. Who says flashlights can't flash?! Mine flashes. It's true. There's a "flash" button. you guys are gay nerds

What kind of energy is stored in a flashlight battery enabling it to function?

Well, most portable electronics will us Direct Current energy, or DC energy, for short. Direct Current is a weaker form of electricity. Alternating Current is the other form of electricity. It is used in houses. The reason they don't use AC energy for small things is because the converter needed for the AC weighs about 2 pounds for a single appliance. To use one that can do multiple things at once, like the ones in your house, then you must buy the regular, larger converters, which cost around 2000 dollars for the cheaper ones. And, don't forget that they weigh about 3300 pounds each!

Does a light switch change chemical energy directly in to light energy or does a flashlight?

A light switch simply completes a circuit, allowing electrical energy to flow through a light bulb which then produces light energy. In a flashlight, a battery provides electrical energy which is converted into light energy by the bulb or LED.

Can you legally use a flashlight as a substitute for a headlight on a moped?

So long as its bracketed in properly, and meets the legal requirements for visibility, yes.

Is a flashlight an example of a parallel or series curcuit type?

A flashlight is an example of a series circuit; a battery in series with a switch in series with a bulb.

Does a flashlight use electrical energy or thermal energy?

a flashlight using chemical and gives out electromagentic enery and a little bit of thermal

How many volts does a flashlight need to make it work?

The answer is governed by the size of the flashlight. Count the amount of batteries that go into the flashlight and then multiply by 1.5 and this will give you the voltage of the flashlight. For NiCd and NiMH rechargeable batteries multiply by 1.3 volts.


Does a flashlight emit one beam or many beams of light?

Depends on the flashlight, some have many bulbs which would probably shine brighter, or just one big bulb which depending on the bulb, might shine less bright.

Is a flashlight a wet cell or a dry cell?

Generally we call them dry cells. However, the electrolyte in an alkaline cell is fairly liquid, so it may be a case of the technology outstripping the terminology.

The old 'dry cell'/'wet cell' division really is no longer valid. We talk of 'primary cells' for cells that cannot be recharged, and 'secondary cells' for those that can.

How do kinetic flashlights work?

A bar magnet moves back and forth through a coil. Moving a conductor through a magnetic field (or vice versa) generates a flow of electrons. The electrons are used to charge a capacitor, and the saved charge can be released gradually to power the flashlight bulb.

How do you say flashlight in spanish?

The word 'flashlight' translates to 'linterna eléctrica' in Spanish.

What are the subsystems of a flashlight?

Bulb, circuit, batteries, switch, reflectors, and housing.