Wenxi Technology

              Two way switch The 2-way switch acts as 2 switches that can control a single lamp. You might ask yourself, why do we need  2 switches for a single appliance when we have one?            The two-way switches are generally used for staircase lightning and other lightning systems where we want to take control of appliances from two different locations.                                                        Suppose you are on the top of stairs and want to turn on the light above the stairs, then using the 2 way switch you can turn on/off the same lamp with two different or locations.               ...

  Voltage V oltage is the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting loop, enabling them to do work such as illuminating light .  The term Volt(V) recognizes Italian physicist Alessandro Volta (1745-1827), inventor of the voltaic pile—the forerunner of today's household battery. Voltage is either alternating current (AC) voltage or direct current (DC) voltage.  How can we measure Voltage? Voltage is measured by Voltmeter How to measure voltage in the circuit? Voltage formula  V=I×R                  (Voltage = Current × Resistance ) Example 1; Find the Voltage in the circuit below (Emf) Data given; R=8 I=5 Formula V=I×R V=5×8= 40 V=40 Therefore, E=40 Quiz If an electric circuit is composed of resistance of 0.5 ohms,and 2A (Current) what is the value of Voltage that runs through this circuit? show the answer

What are powers or exponents? Using  powers  is a shorthand way of writing repeated multiplication using the same number. For example, rather than writing 4 x 4 x 4 it can be simplified to 4³. This is read as 'four to the power of three'. This sort of notation is used when finding the area of a square or the  volume  of a cube. It can also be used to describe other calculations using repeated multiplication. Examples 2×2×2=2 ³ Test yourself; 4×4×4×4=?   show the answer

  TRANSFORMER     Is the device that transfers electric energy from one alternating current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage.     Transformers are used to increase or decrease the alternating voltages in electric power applications. PARTS OF TRANSFORMER     There are three parts of Transformer 1.  Primary winding This produced magnetic flux when it is connected to an electrical source. 2.  Secondary winding The flux produced by the primary winding passes through the core will link with the secondary winding. This winding is also on the same core and gives the desired output of the Transformer. 3.  Core The magnetic flux produced by the primary winding passes through this path linked with secondary winding are creates a closed magnetic circuit. TYPES OF TRANSFORMER     According to the design, Transformer can be classified into two categ...