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Why does the resistance of a thermistor decrease as the temperature rises?
Some materials have negative temperature coefficients of resistance, and some have positive temperature coefficients. Carbon is an example of a substance with a negative thermal coefficient of resistance, so it's resistance will decrease as it gets hotter.
Why are Materials technology bad?
Materials technology can have negative impacts due to environmental concerns, such as pollution and resource depletion associated with the extraction and processing of raw materials. Additionally, the production of certain materials can result in hazardous waste and carbon emissions, contributing to climate change. Furthermore, reliance on rare or non-renewable materials can lead to geopolitical tensions and economic instability. Finally, the lifecycle of some materials may pose health risks to consumers and workers involved in their production.
What are the materials impoved by technology?
Pretty much every single material could be improved using some sort of technology...
Positive effects technology has had on humans?
Some positive effects of technology has had on humans were some including new medical discoveries, sex changes, cancer preventing drugs, some lessening of the racism to the gay and lesbian people and finally the fact that more faster ways of travel have been developed.
How the resistance of conducting material vary with temperature?
Well, there's typically two types of materials-Those with positive temperature coefficient and those with negative temperature coefficient. Positive temperature coefficient are those whose resistance increases as temperature increases. Negative temperature cofficient are those whose resistance decrease when the temperature increase. There are however some alloys such as Manganin& Constantan whose resistance is not affected by temperature
What are some negative and positive impacts about enviromental technology?
negative: it uses power. Positive: you can google how to save the Envroment and save power
What are some positive and negative things about living in Sparta?
What are some positive and negative things about about living in Sparta?
Do You Believe technological advances have a positive or negative influence on our nations health?
Some positive some negative.
Is a particle of dirt negative or positive charge?
A particle of dirt is generally neutral, as it contains a mixture of various materials, including minerals, organic matter, and microorganisms, which can carry both positive and negative charges. However, some components within the dirt can become charged due to interactions with other materials or environmental factors. Overall, dirt does not inherently possess a consistent positive or negative charge.
Why are cosines positive and negative?
Because the cosine of some angles is positive and the cosine of some other angles is negative.
What are some positive and negative effects of technology on workplaces?
Technology has thousands of benefits, including the ability to communicate faster, organize and transmit data more efficiently. One major downside is DISTRACTION.
How do you know positive and negative terminals?
Look for a + by the positive terminal and a - by the negative terminal, or red for positive, black for negative. Some batteries have the positive terminal protruding and the negative terminal flat. Or you can get a meter that will tell you which is which,
What are some positive and negative effects of internationalism on Canada?
Positive: Environmental Negative: loss of soverignty
Do positive number turn into negative?
No, they cannot. The result of some operations on positive numbers can be negative.
What are positive and negative traits of an individual?
Positive and negative traits will vary based on the individual.Many traits exist, some positive ones include:CaringDevotedGenerousLoyalLovingRespectfulSincereMany traits exist, some negative ones include:SelfishDisrespectfulVainPessimisticRudeUnreliableNegative
What are the positive and negative impacts of science and technology on human society?
Positive impacts include advancements in medicine, communication, and transportation, improving quality of life and increasing productivity. Negative impacts can include environmental degradation, loss of jobs due to automation, and ethical concerns surrounding privacy and data security. Balancing these impacts is crucial for ensuring that science and technology benefit society as a whole.
What are the positive and negative aspects of technology?
Some of the positive impacts of technology are that it has helped bring about safer medical treatment. New research has brought about better treatment for some diseases. On the negative side, a lot of new technology has been used to make weapons that harm people. Improvised Explosive Devices (IEDs) have been used by the wrong people to harm others.
