Home / Component

How is a capacitor different from a battery?

How is a capacitor different from a battery? Batteries and condensers seem similar because they store and release electricity. However, there are key differences between them that affect their potential applications due to how they work differently. A capacitor consists of two or more conductive plates separated by a dielectric. When an electric current enters … Read more

What happens to a resistor when it fails?

What happens to a resistor when it fails? A fixed composition resistor normally fails in an open configuration when overheated or too demanding due to shocks or vibrations. Excessive humidity can cause an increase in resistance. A resistive composition resistor can wear after extensive use and worn particles can cause high resistance short circuits. Resistors … Read more

What happens when a resistor is short circuited?

What happens when a resistor is short circuited? A short circuit is an abnormal connection between two nodes of an electrical circuit designed to be at different voltages. This results in an electric current limited only by the Thevenin equivalent resistance of the rest of the grid, which can cause circuit damage, overheating, fire or … Read more

What is a pure inductor?

What is a pure inductor? Inductors do not behave just like resistances. While the resistors simply oppose the flow of electrons through them (by lowering a voltage directly proportional to the current), the inductors resist the current changes through them, lowering a voltage directly proportional to the current change rate. According to Lenz’s law, this … Read more

Why do you use a resistor with an LED?

Why do you use a resistor with an LED? When you talk about resistor with LED then first in your mind got Why do you need an LED resistor? Resistor used in LED to limit the LED current to a safe value. increase life of LEDs by limiting over value current passing through it by … Read more

What do you use a resistor for?

What do you use a resistor for? Resistor┬ácan be used to reduce the voltage or current available in a circuit by adding resistance between 2 components of circuit. The role of the resistor in an electrical circuit: NOTE: The diagrams, links and practical questions in this document still need to be added: in DC or … Read more

What is a resistor and how does it work?

What is a resistor and how does it work? A resistor is a passive electrical component with two terminals that implements the electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels to divide voltages, influence active elements, and terminate transmission lines among other uses. How … Read more

Why is the base region of an NPN transistor made thin and light ?

The base region of an NPN (Negative-Positive-Negative) transistor is intentionally made thin and lightly doped to optimize the transistor’s performance and achieve efficient amplification. Here’s why the base region is designed in this manner: Transistor Action: The primary function of the base region in an NPN transistor is to control the flow of current between … Read more

Why do electronic devices have fixed frequencies set as 50hz 60hz ?

The fixed frequencies of 50 Hz and 60 Hz for electronic devices are primarily associated with the standardization of alternating current (AC) power systems. The choice of these frequencies is rooted in historical, technical, and practical considerations. Here’s why these frequencies are commonly used: Historical Standardization: The development of AC power systems dates back to … Read more