How are temperature and resistance related ?

How are temperature and resistance related ? Temperature and resistance are closely related in materials due to their intrinsic physical properties. In general, as the temperature of a material increases, its electrical resistance also tends to increase. This phenomenon can be explained by the atomic and molecular interactions within the material. At higher temperatures, the … Read more

Will a capacitor convert AC to DC ?

A capacitor itself does not convert AC (alternating current) to DC (direct current). Instead, capacitors store electrical energy temporarily in the form of an electric field. In an AC circuit, capacitors charge and discharge as the voltage across them alternates with the AC signal. This behavior is useful for applications such as filtering or coupling … Read more

What is the differrence between PCB and PCBA ?

The difference between PCB and PCBA lies in their stages of production and functionality. PCB stands for Printed Circuit Board, which refers to the physical board made of non-conductive material (such as fiberglass or epoxy) with conductive pathways etched or printed onto its surface. A PCB serves as a foundation for electronic components to be … Read more

What is the purpose of switches in circuit switched networks ?

Switches in circuit-switched networks serve the fundamental purpose of establishing and maintaining dedicated communication paths, or circuits, between communicating parties for the duration of a communication session. In circuit-switched networks, such as traditional telephone networks, switches play a crucial role in setting up these paths by dynamically connecting segments of the network as needed. Once … Read more

What can I do if my circuit breaker doesnt reset ?

What can I do if my circuit breaker doesnt reset ? If your circuit breaker doesn’t reset, there are several steps you can take to troubleshoot and potentially resolve the issue. First, ensure that the breaker is fully in the “off” position before attempting to reset it. Sometimes, if the breaker is not fully turned … Read more

How to convert a single phase in a 3 phase AC ?

Converting single-phase AC to three-phase AC typically requires the use of a phase converter. One common type is a rotary phase converter, which utilizes a single-phase AC power source to generate a third leg of power, effectively creating a balanced three-phase output. Rotary phase converters typically include capacitors and induction motors that facilitate this conversion … Read more

Why we use capacitor as filter in rectification ?

Capacitors are commonly used as filters in rectification circuits to smooth out the pulsating DC output that results from rectifying AC voltage. During rectification, AC voltage is converted into pulsating DC, which contains significant ripple or fluctuations. A capacitor connected across the load in such circuits serves as a filter by storing electrical charge during … Read more

Why does light have a frequency even though it is a particle ?

Light exhibits properties of both particles (photons) and waves, a phenomenon known as wave-particle duality. Despite being considered as particles, photons also exhibit wave-like behaviors, including interference and diffraction. The frequency of light arises from its wave nature. In the wave model, light is an electromagnetic wave consisting of oscillating electric and magnetic fields traveling … Read more

Why does a fluorescent lamp need a choke coil to work ?

A fluorescent lamp requires a choke coil, also known as a ballast, to operate efficiently and safely. The primary purpose of the choke coil in a fluorescent lamp circuit is to regulate the electrical current flowing through the lamp. Fluorescent lamps operate using a discharge of electricity through ionized gas within the lamp tube, which … Read more