Which Bulb Glows Brighter When Connected in Series & Why?
We can connect the bulbs in the series or parallel according to the desired application. The lumen of the bulb depends on the current flowing … Read more
We can connect the bulbs in the series or parallel according to the desired application. The lumen of the bulb depends on the current flowing … Read more
AC hum & contact bounce in a magnetic contactor cause premature failure of the contactor. In this post we will discuss in detail what is … Read more
Transformer is a static piece of equipment and it has primary and secondary winding. The low voltage winding has few turns of wire wound around … Read more
What is Differential Protection? Differential protection is used for detecting the fault in a particular zone. Therefore, we call it also unit or zone protection. … Read more
What is Exciting current? The exciting current in the transformer produces the magnetic flux in the core. When energizing transformer at no load, transformer draws … Read more
The no-load current of a transformer is the vector sum of the exciting current and core loss current of the transformer. Why Losses in a … Read more
The effect of temperature on the resistance of the conductor is an increase in the resistance value with an increase in temperature. The resistance of … Read more
In this posts we shall study how does resistance vary with diameter.The resistance is inversely proportion to the area of the conductor.The area is proportional … Read more
The main purpose of use of shunt in ammeter is to bypass the current. The ammeter can carry a small amount of current though it. … Read more
Computers installations small or big are susceptible to harmonics in the power lines. The advance designs of computer and peripherals make them virtually failure proof. … Read more