What is the Cell in a Battery?

‘Cell and Battery are not the same things‘. How? We all use Batteries in our daily life. Mobiles, Laptops, wall clocks and some other devices need this to work. Do you know why we use a Battery? Yes, it is the source of electricity. In recent times, Electric cars gained popularity. These cars also use … Read more

Electric Current – definition, equation, types and direction

Electricity is one of the most essential things in our daily life. To deal with an electrical circuit, we need to know the physical quantities associated with it. Current, Voltage, resistance, power, etc. are among those quantities. Many scientists have given various laws of electricity and explained how to determine such physical quantities in a … Read more

Voltage drop across Resistor – formula & concepts

When an electric current flows through a resistor, a voltage drops across it. There is a simple way of measuring the voltage across a resistor by using a voltmeter. But, if we need to calculate it from the circuit parameters, then how can we do that? In this article, I’m going to explain the formula … Read more

Types of Electric Circuits with diagrams

Every device we use contains a circuit in it. A circuit consists of some circuit elements that are used for different purposes. These elements in a circuit can be connected in different ways depending on the functions for which these circuits are used. Based on the types of connections of the elements, electric circuits are … Read more

100k ohm resistor color code with 3 4 5 and 6 bands

100k Ohm carbon film resistor is a popular resistor in electrical circuits. It can be available with three, four, five or six bands. These bands have different colors which are known as the color code. To know the resistance value of the resistor, we should know how to read the color code. The resistor color … Read more

10k Ohm resistor Color code with 3 4 5 and 6 bands

10k Ohm resistor is frequently used in electrical circuits. To design a practical circuit that contains 10000-ohm resistors, then the easiest option is to choose 10k ohm carbon film resistors. Because they have bulk availability in the market with the cheapest prices. But, the problem with carbon resistors is that most of the students don’t … Read more

Difference between Open Circuit and Closed Circuit

Every device we use has a unique circuit. It contains circuit components and proper biasing for its operation. Do you think that just these things are enough to deal with a circuit? No way. You have to take care of some other conditions. A circuit needs electric current for its operation. You are probably thinking … Read more

1k Ohm resistor Color code with 3 4 5 & 6 bands

1k ohm carbon resistor is one of the popular resistors in Physics and Engineering laboratories. It has wide uses in different practical circuits. Carbon resistors are identified by the colors of bands on their surface. Therefore, one can calculate the resistance value of such resistors by reading the color codes. In this tutorial page, we … Read more

100 Ohm resistor Color code of 3 4 and 5 bands

100 ohm carbon resistors are very much useful resistors in practical circuits. These are available with 3, 4 and 5 bands. We need to identify it by solving its color code. In this tutorial post, we’re going to explain how to read the color code of 100 ohm resistor to calculate its resistance without using … Read more

How to read the color code of carbon resistors

In Science and Engineering labs you may have seen carbon resistors. This type of resistor is usually painted with three, four, five or six bands of different colors. These bands are the codes from which one can find the value of the resistance of a resistor. Now, how to read resistor color code of carbon … Read more