Combination of resistors in series and parallel connection

Suppose you have two resistors of resistance 2 ohm each, but you need 1 ohm resistance to use or connect in a circuit. What will ...
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Electronic circuit components with their uses

All the electrical and electronic circuits consist of some components and current source or voltage source. These circuit components perform all the activities in the ...
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Examples of input devices in computer with images

In the architecture of a computer one can see that the components used in the computer are Input devices, Output devices, a CPU, and Memory ...
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Expression for drift velocity of electrons in a conductor

In the application of an external electric field, free electrons move with some velocity in a conductor. The velocities of all the electrons are not ...
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Faraday’s law of electromagnetic induction for EMF

Scientist Oersted first observed that a current carrying wire produces magnetic field around it. One can find the magnitude of this magnetic field by using ...
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Formula for impedance in electronics (RLC & LC circuit)

Impedance is a frequently used word in electronics and physics. We already have discussed the resistance of a conductor in another article. Impedance is almost ...
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Formula for Ohm’s law of current and Voltage with graph

There are two basic laws of current electricity - one is Ohm's law and other one is Kirchhoff's law. Ohm's law of current electricity gives ...
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How the holes move in semiconductor?

In this article, we are going to discuss on the holes in semiconductor crystals. Our main discussion is on "How the holes move in semiconductor?" ...
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Impedance of Inductor formula (Inductive reactance)

In another article, we have discussed the electrical impedance of various circuit components like resistors, capacitors, inductors and their combination (LC, RLC, RC circuits). In ...
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Intrinsic and extrinsic semiconductor materials

Semiconductor materials have a huge role in modern technology. The discovery of semiconductor materials has changed our daily life. Almost all electronic devices we use ...
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Kirchhoff’s law of current and voltage (KCL and KVL)

Kirchhoff's laws are the most fundamental and useful laws in current electricity. Scientist Kirchhoff has given two rules of electricity. Using these two rules one ...
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MCQ on current electricity for class 12 CBSE PDF

In recent exam pattern of class 8, 10 and 12, MCQ and short questions carry majority marks. In this context multiple choice questions are very ...
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