It might be useful to read post 17.39 before you read this. Let’s suppose we use a spring (post 16.49) to push an object (mass m – post 16.13), through a viscous liquid (post 17.17). Three things happen at once: (1) the force compresses the spring (post 16.49), (2) the force overcomes the drag force… Continue reading 18.24 Analogies between electrical and mechanical systems

Before you read this, I suggest you read posts 17.44, 18.20 and 18.22. The picture above shows a resistor (of resistance R, post 17.44), a capacitor (of capacitance C, post 18.20) and an inductor (of inductance L, post 18.22) connected together; I have used standard symbols to represent these components. There is a potential difference… Continue reading 18.23 Frequency response and resonance in electrical systems