Engineering Tube

Digital Multimeter (DMM).   A multimeter is a device which is use for measuring different parameters of electrical energy. Such as voltage, current ,resistance, continuity and much more. Multimeter has multi functionalities like, it acts like ammeter, voltmeter and ohmmeter. There are two main types of multimeter .Analog multimeter and digital multimeter. How to Measure DC VOLTAGE: (— ,  - - -)   To measure the DC Voltage on multimeter .First you need to rotate the rotary switch pointer tip toward the DC Voltage section. Normally we measure voltage up to 20 volts its better to bring pointer tip on 20v .Then Connect the probe to DMM insert Black in Black input jack   and red in middle red input jack. After that connect one probe tip to the battery terminal and the other to the next terminal .The digital value   will be show on the display screen on DMM   it will be show you the exact voltage of your battery or any DC source you connect. ...

Introduction:                      In this project    we control all the home appliances from PC .This project is very important for home, office, shops etc. The most important use of this project is in the industries where you can control thousands of appliances from one single PC. it gives you reliable   results of controlling a lot   of devices   .               The other big advantage of this project is a good power management.   In case of any failure     in the power system early recovery is possible and less time will be waste.        In such project you can control any type of Electric powers, for example you can control power of    small industries, big industries, power plants   etc. There are a lot’s of application of this project in the industries side. General...