Types of ECG

In previous, article we discussed ECG (Electrocardiogram). In this article, we will see about different types of ECG. The type of ECG monitoring depends on the frequency and severity of symptoms. There are three types of ECG monitoring i.e. resting ECG, stress ECG, and ambulatory ECG. Ambulatory ECG is divided into 3 groups i.e. Holter monitors, … Read more

Magnetic Anisotropy

In single crystal material such as iron, the magnetic properties of a material depend on the direction in which they are measured. This property of the magnetic material is called as Magnetic Anisotropy. There are three methods to induce Magnetic Anisotropy Cold Working Magnetic Annealing Magnetic Quenching 1. Cold Working such as cold rolling induced the uniaxial magnetic … Read more

Classification of Magnetic Materials

The magnetic materials are classified into 5 types Diamagnetic Material Paramagnetic Material Ferromagnetic Material Anti-ferromagnetic Material Ferri Magnetic Material 1. Diamagnetic Material These material have smaller and negative magnetic susceptibility. These material are repelled by applied magnetic field. The magnetic flux density inside diamagnetic material is zero. B = 0 µo[ H + M ] = … Read more

What is Holter Monitoring?

Holter Monitor It is a small, wearable device that records your heart rhythm. It is very similar to a mobile phone. A patient usually wears a Holter monitor for one to three days. The device will record all of your heart rhythms during that time. So, a Holter monitor test is usually performed after an ECG (electrocardiogram) … Read more

Magnetostriction & Villari Effect

Magnetostriction When a material (magnetic material) is magnetised, changes in dimension are generally observed.  This property of a magnetic material is called magnetostriction. There are three types of Magnetostriction Longitudinal Transverse Volume 1. Longitudinal Magnetostriction When a change in the dimension is in the direction of applied field. 2. Transverse Magnetostriction When a change in the dimension is perpendicular … Read more

Chemical Bonding

Chemical Bonding The binding forces between atoms or molecules are known as a chemical bond. There are two types of chemical bond. Primary Secondary Primary Bond These are the interatomic bond. These bond are having higher bond energy. Examples: Ionic, covalent and Metallic bond. Secondary Bond These are the intermolecular bond. These bond are having … Read more

Types of Conductors

Conductors are mainly made up of Copper, Aluminium and their alloys. Stranded Conductors Greater flexibility and mechanical strength than the single wire of same crossectional area. Total number of conductor is a strand of n layer = 1 + 3n(n + 1) Overall diameter of stranded conductor = (2n + 1)d where, d = diameter … Read more

Difference Between Asynchronous and Synchronous Counter

  S.No. Asynchronous Counter Synchronous Counter 1. All flip-flops are not clocked simultaneously. All flip-flops are clocked simultaneously. 2. Output of first flip-flop drives the clock of the second flip-flop, the output of second drives the third and so on. there is no interconnection between an output of one flip-flop and clock of next flip-flop. … Read more

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