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1. What is capacitance in reality? What are some applications for this? 2. Why is it important that the capacitance only depends on epsilon – O and the physical dimensions of its geometry? 6:3 PN 1. I think capacitance in reality is just the system that can store the energy and charge. some applications for this are: AC circuits or the sensors like air, lights 2. I think it’s important because it can change the charge and alter the value of the circuit. Reply 202 at 1:52 PM Hello Class, 1. Capacitance is the ability of a system to store energy in the form of an electric charge. Some applications for this include the flash of a camera, the touch screen on some smart phones, and air conditioning circuits. 2. It is important that the capacitance only depends on epsilon – 0 and the physical dimensions of its geometry. So that we can change the ratio of change in electrical charge of a system to the total change of electrical potential energy of the system. Thanks, Reply ww2o, 2021 at 6:48 PM The way how described the concept of capacitance is very understandable. Also, the examples of the applications of capacitance are very interesting. Thanks, Reply Feb 23, 2021 at 9:03 PM Hi Andrew, good job on explaining the idea. It was very easy to understand and well put. You have some really good examples as well. Reply | … en -2021 at 2:44 PM A capacitor is performs as what most people would consider a battery. It stores the electrical potential of an object. It is important to note that that capacitance is only dependent on epsilon – O and the physical dimensions of it’s geometry, because it means that engineers would mostly need to focus on size and materials when considering a capacitor for a device. Reply … Hello everyone, 2 As we learned in this week’s lecture, capacitance is the ability of a system to store energy in the form of an electric charge. Capacitors make great use of this property by collecting the charges generated by a difference in voltage. We can then use the capacitors for timing, smoothing, coupling, tuning, and storing energy in different machinery. One important aspect of capacitance is that it only depends on epsilon – 0 and the physical dimensions of its geometry, this allows us to change how the circuit behave to our needs with ease as the variables that affect the value is limited, yet having a large number of combinations. Feel free to correct me, I am still processing it and have a lot to learn! Thanks, ciat 6:44 PM Hello Everyone! Q1: Capacitance – is the ability to keep the energy as a reservoir for electric charges. In reality it can be described as a car battery – the simplest example. The applications of this physics characteristic can vary from power storage to signal processing(by storing the energy and using it to provide different kind of signals) examples: X X X X xxx xxx XX 5 Q2: This question is related to the practical concept of building the capacitors. The most important part is its geometry. For the last decade engineers have been fighting to reduce the size of mobile capacitors. The other thing is that the capacitor depends on epsilon-0 which means for how good its dielectric property is. Of course, these both characteristics are linked with each other. Thanks, Reply al :02 PM Hi Anatol, really good job with your explanation. It was very detailed and easy to follow, it made the topic clearer for me. And the pictures helps to understand the topic better. Thanks. Reply 2021 at 8:45 PM 1. Capacitance is the ability to store charge. Based on the video, capacitance is useful in charging cell phones. 2.Capacitance relying on epsilon-O implies that the permittivity between electric fields matters. So, dielectric materials that we place inside capacitors can influence capacitance. Capacitance relying on its physical geometry is important because it implies that as long as the structure can hold charge across a potential difference, capacitance is possible. Reply 20, 2021 at 9:00 PM 1) Capacitance is the ability of a system to store energy in the form of an electric charge. It stores the electric potential energy of an object. Some application: AC circuits, touch screen on smart devices. 2) It is important that capacitance depend on epsilon-O and the physical dimension of its geometry because it allows us to manage how the circuit behaves. The epsilon-O is the permittivity of free space. Reply Feb 24, 2021 at 12:23 AM I agree with your analysis in your post. Capacitance is really just some form of system that allows energy to be stored. I like how you have also mentioned a few applications to make new physics students get a better grasp of the concept, by relating everyday electronic devices to their topics. Good job! Reply Feb 23, 2021 at 11:19 PM 1. Honestly, capacitance is just some system that has the ability to store energy and charge from a source of energy. Look at the lab for example 🙂 2 6 2. It is important that capacitance only depends on epsilon 0 because it behaves as a ratio. If the dielectric material has less permittivity, then there will be less capacitance and vice versa the other way. This concludes that they are directly related to each other. Reply

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