Which of the following is main advantage of microwave?
your answer is option (a) I.e highly directive. At microwave frequencies , there are better directive properties. this is due to the relation that as frequency increases wavelength decreases and as wavelength decrease directivity increases, and beam width decreases.
Is a microwave an electronic device?
A microwave oven is powered by a magnetron, an electronic device that generates electromagnetic waves of frequency 2.45 GHz. The microwaves enter the oven and are reflected by the walls. From these data, calculate the speed of the microwaves.
Is computer an electronic device or electrical?
A computer is described as an electronic device because; it is made up of electronic components and uses electric energy (such as electricity) to operate.
What are 5 uses of microwaves?
Microwaves are widely used in modern technology, for example in point-to-point communication links, wireless networks, microwave radio relay networks, radar, satellite and spacecraft communication, medical diathermy and cancer treatment, remote sensing, radio astronomy, particle accelerators, spectroscopy, industrial …
Is refrigerator an electronic device?
A refrigerator is an electronic device. this is how heat is absorbed from refrigerator and released to out side by compressing that gas and ventilating through the tubes placed out side.
How does an electronic device help in your daily life?
Literally thousands of everyday devices that we use constantly make use of electronics technology in order to operate. Equipment such as MRI, CAT and the older X-rays, tests for diabetes, cholesterol and other blood component tests all rely on electronics in order to do their work quickly and accurately.
What are the advantages and disadvantages of using a microwave oven?
So, what are the Advantages and Disadvantages of Using a Microwave Oven? The main advantage of using a microwave oven is that it takes less time to heat food which is suitable for our busy lives. The disadvantage of a microwave oven according to the studies is microwave radiation leakage when the oven gets damaged.
What is the difference between electronic and electrical device?
The major difference between the electrical and electronic devices is that the electrical devices convert the electrical energy into the other form of energy like heat, light, sound, etc. whereas the electronic device controls the flow of electrons for performing the particular task.
Is a fan an electronic device?
A fan is also an example of a simple electrical device that converts electrical energy into kinetic energy putting the fan in motion. Such a device is simple and does not require any manipulation of the current that is given to it. On the other hand, a thermostat is an example of an electronic device.
Is a TV an appliance or electronic?
TVs are normally classified as electronic devices rather than home appliances. Home appliances are more specific to systems like your dishwasher, refrigerator, or stove.
Why are electronic devices useful?
Electronic devices and games may encourage cognitive learning and the development of analytical skills. This may in turn help children build innovative thinking and investigation skills, strategic thinking, and creativity. Using computers may improve manual dexterity and build computer literacy.
What is microwave in simple words?
A microwave is a high-frequency radio wave. They are broadly defined as having a wavelength between 1 millimeter and 1 meter, or narrowly between 3 mm and 300 mm. Microwaves have many uses including radar, radio astronomy, and to heat food in a microwave oven.
What is another word for electronic devices?
Synonyms for Electronic devices
- electronics. n.
- electronic device.
- electronic equipment. n.
- electronic apparatus. n.
- electronic components. n.
- electronic component. n.
- electronic parts. n.
- electric appliances. n.
What are examples of devices?
Types of devices
- Input devices, which write data to a computer, includes keyboards, mice, touchpads, joysticks, scanners, microphones, barcode scanners, and webcams.
- Output devices, which accept data from a computer, includes display monitors, printers, speakers, headphones, and projectors.
What is an example of microwave?
An example of microwave is cooking popcorn in a quick cooking oven that uses microwaves. A wave of microwave radiation. Microwave is defined as the part of the electromagnetic spectrum with large infrared waves and short radio waves, an oven that cooks food very quickly or made to cook in one of these ovens.
What is the most useful electronic device?
technology adoption finds that 73 percent of the 37,000 respondents claim the mobile phone is the electronic device they use the most. Fifty-eight percent said the second-most-widely-used device is their desktop PC and 56 percent said printers are the third-most-used device.
What is your Favourite electronic device?
Answer: My favourite electronic device is phone because It provides to call and massaging with our beloved ones. There are operator companies for communicate with other people: Vodafone, Orange, Turkcell, Turk Telekom, Bimcell, Pttcell… And some messaging application: WhatsApp, Line, Skype, Bip, Messenger, Snapchat…
What is the range of microwave?
Microwave frequencies range between 109 Hz (1 GHz) to 1000 GHz with respective wavelengths of 30 to 0.03 cm. Within this spectral domain are a number of communication systems applications that are important in both the military and civilian sectors.
Is a telephone an electronic device?
A telephone is an electronic device that you use for conversations over great distances. Telephones used to be fixed to walls and connected by cables, but now most people have cellular telephones, known as cell phones or mobiles.
What are the advantages and disadvantages of microwaves?
There are certain advantages and disadvantages of microwave cooking. Microwaves are convenient to use, they do not burn food, they are highly economical and they heat food faster and healthier than other methods. On the flip side, you’ll need to use microwave-safe vessels for cooking.
Is laptop an electronic device?
Portable Electronic Devices (PEDs) are commonly used electronic devices and gadgets such as mobile phones, notebook computers, tablets, laptop computers, etc.
Do cell phones use microwaves?
Cell Phones Cell phone signals are carried through the air as microwaves. You can see how this works in the Figure below. A cell phone encodes the sounds of the caller’s voice in microwaves by changing the frequency of the waves. This is called frequency modulation.
What are the applications of microwaves?
What are the applications of microwaves?
- The microwaves are the electromagnetic waves having frequencies in the range 300 MHz to 300GHz.
- Microwave ovens are used for cooking.
- Microwaves are also used in drying materials and households for the preparation of food.
- Microwaves obey the laws of reflection and refraction.
What are three ways in which people use microwaves?
What are three ways in which people use microwaves? They are used to transmit data, TV signals, and telephone signals. They are also used in ovens and radar. Compared to visible light, the wavelength of X-rays is and the frequency is .
What is microwave and its uses?
A microwave oven is a very versatile kitchen appliance which offers a whole range of uses. Microwave ovens can be used to reheat and cook food, disinfect kitchen items, make citrus fruits juicier, heating beauty products, roasting garlic and de-crystallising honey.
What are examples of electronic devices?
This includes devices such as the following:
- desktop computers.
- laptop computers.
- mobile phones.
- tablet computers.
- storage devices, such as flash drives.
- input devices, such as keyboards, mice, and scanners.
- output devices such as printers and speakers.
What do you mean by electronic device?
Noun. 1. electronic device – a device that accomplishes its purpose electronically. answering machine – an electronic device that answers the telephone and records messages. beeper, pager – an electronic device that generates a series of beeps when the person carrying it is being paged.
Is bulb an electronic device?
All of these devices, and many other common devices still in use today, such as light bulbs, vacuum cleaners, and toasters, are known as electrical devices. The heating elements in a toaster turn electrical energy into heat so you can burn your toast.
Can microwaves damage electronics?
Microwave energy builds up a charge on the surface of metal objects and ions. Specifically with electronics, this will result in heat and arcing between metal traces on circuit boards. All these will result in the death of an electronic device. In other words, don’t leave your cell phone in your microwave.