Kirchhoff’s Current Law (KCL)
Like Kirchhoff’s Voltage Law (KVL), Kirchhoff’s Current Law (KCL) is also just a simple concept (arguably even simpler than the KVL). It simply states that: The sum of the currents in to a node are equal to the sum of…
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Parallel Resistors and Current Dividers
Parallel Resistor Circuits Parallel resistance is when two, or more, resistors are each directly connected between the same two nodes of a circuit. We can revert back to our default of using water analogies for this one. Consider a pipe…
Kirchhoff’s Voltage Law (KVL)
The good news is that this law is just a very simple concept with no complicated equations to remember. Even if you never heard of Kirchhoff, you probably already know this law intuitively. I tried really hard to think of…
Series Resistors and Voltage Dividers
Series Resistor Circuits Making further use of our analogy with water circuits. Resistors are like pipes and when you connect pipes together in series (end to end) they provide only a single path for the water. Hence they all carry…
Maximum Power Transfer Theorem
Maximum Power Transfer Theorem This one of the simplest theorems that there are. It simply states that: Maximum power will be transferred when the internal source resistance is equal to the load resistance. This sounds counter intuitive to most people…
Power and Joules Law
Power and Joules Law Intuitively we all know what power is. A more powerful motor can turn a heavier load, or turn it faster; A more powerful torch will shine brighter; A more powerful heater will heat a larger volume…
Practical Resistors
Practical Resistors Materials Resistors can be made from a wide variety of materials. Here are some examples of the most common types produced, along with a brief description of how they are made. Wire Wound Typically made by winding a…
Resistance, Conductance & Ohms Law
Resistance Resistance, as it’s name suggests, is the property of resisting the flow of electricity. In our water analogy it is the cross sectional area of the pipe along with how smooth, straight and long the inside of the pipe…
What is electricity?
Charge and Volts To avoid a long excursion into fundamental physics and the history of it’s discovery we will accept on faith two fundamental facts: Before we go any further. Yes I am aware that this is not really how…
How To – Sync Chromium Browser to Chrome
Starting in March 2021 the Google Chrome sync service can no longer be accessed by Chromium Browser builds. There is, however, a little known work around that was still working at the time of this blog in February 2024.