Custom Search

Conversion of voltage source into current source is possible when a voltage source is equal to current source. Figure 1 is a circuit of constant voltage source and figure 2 is a circuit of constant current source. If the two circuits are satisfied electrically the same way under all condition then we can convert voltage source to current source having no doubt.

Read more on Voltage source to current source conversion…

Nodal analysis with current source

Nodal analysis is the method to determine voltage or current using nodes of the circuit. In node analysis we choose node voltage instead of element voltages and hence the equations reduces in this process. We have to consider voltage source is not in this circuit. We have to solve a circuit with n nodes without voltage sources. To solve a circuit using nodal analysis method you must have good knowledge about node branch loop in a circuit. If you have no clear idea read the article then come back here other wise what is nodal analysis it will be difficult for you. There are three steps to solve a circuit using nodal analysis

Read more on Nodal analysis…

Interconnection of some elements is an electrical circuit. A circuit is a network. So to differentiate between a circuit and a network, we should understand the path of circuit.

A branch represents a single element such as voltage source or a current source or a resistor.

We can say that a branch is two terminals of an element. The circuit figure shows 5 branches in the circuit. There is two sources one 20V voltage source, one 4A current source, three resistors. As the circuit contains five elements so it has five branches. Every element has two terminals also.

Read more on What is node, branch and loop in a circuit…

Electric circuit has many elements like resistor, capacitor, inductor, battery etc. Circuit analysis is the process by which voltage or current is measured across the element. In a complete circuit there are two types of elements found active elements and passive elements.

Read more on Define active and passive circuit elements…

Amplifier is an electronic device. The device which increases the value of a signal is called amplifier. In input a weak signal is applied, in output a strong, same shape signal is gained. Amplify means to increase the value of something.

Transistor is used in amplifier. It can amplify a signal many times. In two ways a transistor can amplify a signal

(i) by using high value of output resistance compared to the input resistance,

(ii) by controlling the collector current with the help of base current.

Read more on What is Amplifier?…

What is transistor? Transistor is an electronic device. It is made with p and n type semiconductor. When a semiconductor is placed in middle between same type semiconductors the configuration is called transistor. We can say that a transistor is the combination of two diodes connected back to back.

Bardeen W.H. Brattain of Bell telephone laboratories, USA first invented transistor in 1948. After the invention of transistor revolution occurred in electronic world. Before the invention of transistor big size circuits were used. But transistor turned them into a tiny size.

Read more on What is a transistor?…

An atom has electron, protons and neutrons. According to the Bohr’s atomic model theory nucleus of an atom contains protons and neutrons. Neutrons has no charge and protons have positively charged electrons moves around the nucleus in different orbits far away from this nucleus.

Read more on Concepts of band theory…

Definition of solar cell

 Solar cell is that cell which converts light energy to electrical energy. Working principal of solar cell is related to emission of light or absorption. It is an electronic device. Actually solar cell is p-n junction device which convert solar energy to electrical energy.

Read more on How a solar cell works?…