I will first review the mathematical topic Complex Number, and then I will use the concept of the complex number to solve the differential equation involving the RLC circuit. Review of Complex Number Generally, we write complex number as . We, electrical engineers, had already used the symbol I for current, so we use for …
When I was taking a trip down memory lane, I recalled a conversation with one of my friends which goes like this: He: Why they have to teach the courses that I will never use in my life? Me: Courses like? He: Electromagnetics. (Electromagnetics is a course where we study about Maxwell’s Equations) Me (Surprised): …
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An Analogy I have an obsession with throwing the ball of paper into the trash can from my working table. At my first attempt, I cannot score the ball into that trash can. After that, I can score the ball by decreasing or increasing the initial velocity if the ball lands behind or in front …
I have mentioned the word Loading, frequently in my posts. In the post voltage divider, I bring up that the passive filters are subjected to the phenomenon called loading. Since I have not explained this term, though I am using it frequently, it needs explanation. Loading is not to load rounds in the magazine. We …
How does op-amp work? Op-amp is a device with two inputs, positive and negative input, denoted by the + and – signs respectively. The inputs are high impedance. As a result, it doesn’t cause loading. There is one output which is low impedance. You are used to seeing Figure 1. You do not see …
No, we can not divide vector by vector. Here is possibly the simplest explanation. To explain this consider the dot product of two vectors and which gives the scalar . Here doesn’t equal to , and is an unknown vector. Considering division as the inverse of multiplication, we have to find such that it gives …
What is the most used tool by the Electrical Engineers? Of course memorization (Talking in case of Nepal. I do not know about other places.). Memorization is good until you have to memorize fewer things. However, after reading a few pages, the number of stuff you have to memorize becomes enormous. If you think, there …