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Who found heating effect of electric current?
The heating effect of electric current was discovered by James Prescott Joule in the mid-19th century. Joule's experiments showed that the temperature of a conductor increases when an electric current passes through it.
What is a type of radiation that is absorbed by water?
Microwaves are a type of radiation that can be absorbed by water molecules. This absorption of microwaves causes the water molecules to vibrate and produce heat, which is why microwaves are effective for heating food and liquids.
Do radio and microwaves produce photoelectric effect?
No, radio waves and microwaves do not produce the photoelectric effect. The photoelectric effect is the phenomenon where electrons are emitted from a material when it is exposed to light of sufficient frequency (typically ultraviolet or higher). Radio waves and microwaves have lower frequencies and energies than light, so they are not capable of causing the photoelectric effect.
How does microwaves harm the body?
Microwaves are a form of non-ionizing radiation that can penetrate the body, primarily affecting tissues with higher water content. Prolonged and high-level exposure to microwaves can cause tissue heating and potentially lead to thermal burns. However, when used in accordance with safety standards, microwave ovens are considered safe for heating food.
What do they use microwaves for?
Microwaves are commonly used for cooking and heating food quickly. They work by exciting water molecules in food, causing friction and generating heat. Microwaves are also used in communication technology, such as for satellite communication and radar systems.
Why do fruits cook quickly in the microwave?
Microwaves heat food by causing the water molecules in the food to vibrate... there by heating the food. Water content and the mass of the food will effect the time taken for heating.
Who found heating effect of electric current?
The heating effect of electric current was discovered by James Prescott Joule in the mid-19th century. Joule's experiments showed that the temperature of a conductor increases when an electric current passes through it.
Name good or bad things about microwaves?
Microwaves are good for heating things fast. Don't stay near one, it can cause cancer because microwaves work on heating the water in the food, and we are 70% water and it could mess up our cells
Do airplanes have microwaves on board for heating up food?
No, airplanes do not have microwaves on board for heating up food. Instead, they use ovens or hot plates to heat up meals for passengers.
Why do microwaves spin while heating food?
Microwaves spin while heating food to ensure that the heat is distributed evenly, preventing hot spots and ensuring that the food is heated thoroughly.
Hypothetically could sound be used to cook food the way microwaves cook food in a microwave oven?
No, sound waves cannot cook food the way microwaves do. Microwaves heat food by causing the water molecules inside to vibrate rapidly, generating heat. Sound waves do not have the same heating effect on food as microwaves.
What is the effect of microwaves on the human body?
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Is joules heating effect-a reversible effect?
yes,joule is a heating reversible effect .
Do microwaves kill mold?
Yes, microwaves can kill mold by heating it to a high temperature, but it may not be effective in completely eliminating all mold spores.
What is a type of radiation that is absorbed by water?
Microwaves are a type of radiation that can be absorbed by water molecules. This absorption of microwaves causes the water molecules to vibrate and produce heat, which is why microwaves are effective for heating food and liquids.
Do radio and microwaves produce photoelectric effect?
No, radio waves and microwaves do not produce the photoelectric effect. The photoelectric effect is the phenomenon where electrons are emitted from a material when it is exposed to light of sufficient frequency (typically ultraviolet or higher). Radio waves and microwaves have lower frequencies and energies than light, so they are not capable of causing the photoelectric effect.
Do they have microwaves on planes for heating up food during flights?
No, most commercial airplanes do not have microwaves for heating up food during flights. Flight attendants typically use ovens or hot water to heat up pre-packaged meals.
