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Pin Hole & Blow Hole Soldering Defects

Pin Hole Blow Hole Wave Soldering

Pin hole or blow hole defects are the same problem caused by the printed board outgassing during wave soldering.

Best Multimeter in India Under Rs 500

Best Multimeter in India

Best Digital Multimeter in India at Low Price of Under Rs. 500. This Mastech Multimeter is Best Digital Multimeter in India Tried, Tested and Trusted.

Types of Electric Current

Electric Current

Electrical current is the flow of charged particles. It is similar to flow of water molecules in a river. AC and DC are ways of flow of current an electrical circuit.

Basic Electronics Definition


Electronics is science of controlled activities or movement of free electrons present in Atom of a matter.
The first electronic component every made in 1906 was triod or triode.

Potential Difference

Potential Difference

Potential difference can be simply defined as the difference of electrical potential between two points. When two positive charges when brought close to each other, they repel.

Electric Current

Electric Current

Electric current is the flow of electric charge (charged particles) through a conductor with respect to time. The process is similar to flowing of a river in one direction.

Structure of an Atom

Atom Structure

During our school days, we all studied in science that atoms are made up of 3 particles – electrons, protons, and neutrons.