Category: Lecture

DC Machine

A dc machine is a device which converts mechanical energy into electrical energy into mechanical energy or vice versa. When the device or machine acts as a generator mechanical energy is converted into electrical...

Series Resonance

Series or Voltage Resonance: Consider an ac circuit containing resistance of R ohms, inductance of L henrys and capacitance of C farads connected in series, as shown in fig.3.21 (a). Impedance of the circuit...

Star Delta Transformation

In delta to star transformation “ the resistance of any arm of star is equal to the product of the resistance of the two delta side meeting it divided by the sum of three...

Cramer’s Rule

For a given a system of linear equations, Cramer’s Rule is a handy way to solve for just one of the variables without having to solve the whole system of equations. They don’t usually...

Nodal Analysis

In this method, one node of the circuit is taken as lowest potential reference at zero volts (called circuit ground); while the voltage of other nodes are assumed to be V1,V2,V3. with respect to...

Mesh Analysis

In simple case, we can calculate the equivalent resistance as well as voltage and current in the circuit using Ohm’s law. But in more complex circuit or network the calculation is done with the...

Tutorial Questions

Basic Electrical Engineering Tutorial questions for practice and submission (if asked). Click on each tutorial to download. Tutorial 1 Tutorial 2 Tutorial 3 Tutorial 4