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How would you make a simple led light emit a high decibal noise when the light is crossed?
You need two devices, a light source, such as an LED, and a photocell such as a selenium cell or cadmium sulfide cell. The output of the photocell can be amplified and connected to a switch which controls an audio oscillator to sound when the light of the LED, received by the photo cell is broken.
What else can I help you with?
What is an external noise?
examples of internal noise.thermal noise,short noise,i/f noise
What is noise immunity in digital electronics?
Noise immunity is the ability of a system to perform even when there is noise present. The higher the level of noise a system can still operate under, the higher the noise immunity.
Why is FM superior immunity to noise?
FM systems are far better at rejecting noise than AM systems. Noise generally is spread uniformly across the spectrum (the so-called white noise, meaning wide spectrum). The amplitude of the noise varies randomly at these frequencies. The change in amplitude can actually modulate the signal and be picked up in the AM system. As a result, AM systems are very sensitive to random noise. An example might be ignition system noise in your car. Special filters need to be installed to keep the interference out of your car radio. FM systems are inherently immune to random noise. In order for the noise to interfere, it would have to modulate the frequency somehow. But the noise is distributed uniformly in frequency and varies mostly in amplitude. As a result, there is virtually no interference picked up in the FM receiver. FM is sometimes called "static free, " referring to its superior immunity to random noise.
What do engineers use the signal to noise ratio for?
Signal to noise ratio is a measure of signal strength to the background noise. Engineers use the signal to noise ratio to improve digital signal processing.
Which noise becomes a great importance at high frequency?
SHOT Noise
Does light make noise when it travels through a vacuum?
No, light does not make noise when it travels through a vacuum.
Your car accelerator plate makes a popping noise when you press down on it?
If by "popping noise" you mean backfire, it could be crossed ignition wires, or some sort of misfire.
Does light make noise?
No. Light does not make sound.
What does visual noise mean in simple English please?
Visual noise in simple English is any type of visual distraction. For example, piles of trash in the street can become visual noise if they distract people from enjoying the ambiance of an area.
The boys were making a lot of noise change to simple past?
The correct sentence is - The boys made a lot of noise
Do light waves make noise?
Nope
What is an example of a mechanical wave A glass of water A shovel full of dirt The light of a light bulb or The noise of a car horn?
The noise of a car horn.
What are the kinds of pollutions?
air, water, noise, light
Does an item entering light speed make a noise?
items cannot enter light speed
What is good about hydroden?
it makes cool noise when you light it on fire
How do you use noise in a sentence?
The noise in the classroom full of kids was deafening.
What is a sound with no set pattern and no definite pitch?
Noise is a sound with no discernible pattern and no specific pitch. It is often characterized by its lack of regularity and randomness. Examples of noise include static, white noise, and the sound of a crowd.
