The electrical voltage dropped across a series resistor is directly proportional to its resistance. The voltage divider rule or voltage divider formula lets you calculate the voltage dropped across series resistors The formula An example Consider a series circuit containing 2 resistors of 5 and 10 ohms. The input voltage source is a 12 V … Read more
An voltage source provides constant voltage to external circuit, whereas a current source provides constant current to external circuit. A practical voltage source always contains some series resistance. Just like voltage source, a current source also has some internal resistance, but unlike voltage source this resistance is shunt. If we want to convert one of … Read more
In series circuits electric current always remains the same. However in parallel circuits, the current is not the same, instead, it is different based on the resistance of components. The Current Divider rule is used to determine how current splits at the node and how does it divide among parallel components. In this post, you’ll … Read more
The hydroelectric power uses the potential energy of water for generation of electric power. Hydroelectric power plants are constructed in hilly areas far away from populations. This post illustrates the basic construction and working of a hydroelectric power plant. Working of Hydroelectric Power Plant Hydroelectric power plants the water is stored at a certain height. … Read more
A fuse is a metallic piece of wire which melts when excessive current flows through it. Compared to fuse, a circuit breaker is a complex electrical device which comprises of different components. Both circuit breakers and fuse serve the same purpose i.e. to stop excessive current for protection of the circuit. But how are they … Read more
The Isolator is an electrical device which is used for disconnect a circuit under no load condition whereas a circuit breaker is an electrical device which opens circuits under fault conditions. A circuit breaker is different from isolator because it can operate under no load, full load or faulty conditions. In this post you’ll learn … Read more
The transformer is a key player in AC electrical power systems. It plays its role in stepping up right from generation again steps down the power on the other side while serving for primary and secondary distributions. For understanding the working of transformers you obviously need to understand the mathematics behind its working. Given below … Read more
The electrical resistor is an electronic component which can be found in all electronic components. But what does a resistor is used for and what is its role in circuits? In this post you’ll learn what is a resistor used for in electronic circuits. Let’s consider an electrical circuit containing a source and a resistor: … Read more
Norton’s theorem is a circuit analysis technique which is used to reduce complex electrical circuits to a single current source and one parallel resistor. Statement of Norton theorem: Any linear bilateral network can be reduced to a simple circuit containing one current source and one shunt resistor Given below are steps for Norton’s Theorem Replace … Read more
Y (Wye or Tee) and Delta or (PI) configurations are two special configurations in which electronic components can be arranged. Many times it is important to convert a Wye configuration to delta and vice-versa. Given below is the formula to convert three resistors in Wye configuration to Delta. An example Let’s consider a Wye circuit … Read more