Electricity And Its Applications Pdf
They consist nichrome which has high resistivity and hence high resistance.
Electricity and its applications pdf. When these appliances are in connection with the supply of electricity they become hot but wires remain cold. There are three basic. Application of heating effects of current electric heater and water heater. A semiconductor material has an electrical conductivity value falling between that of a conductor such as metallic copper and an insulator such as glass its resistivity falls as its temperature rises.
As a sensor e g photoresistor detects light condition thermistor detects temperature condition strain gauge detects load condition etc. The selection of these motors can be done based on the operation and voltage and applications. Metals are the opposite. Electrical theory and application volts pdf 3 15 04 rev 1 2 page 2 2004 l l kiln mfg inc.
Transformer construction working types application electrical technology pdf. Basic electrical engineering by m s naidu and s. Electrical and electronic technology by hughes pearson education. Limiting current in electric circuits.
Sukhija oxford university press. Lowering voltage levels in electric circuits using voltage divider. In the previous chapters we have discussed the effects of mostly fortuitous static charge distributions and most of the time we have considered static electricity and static electric fields as only causing inconveniences for mankind. Introduction physical phenomena associated with the presence and flow of electric charge is known as electricity.
Basic electrical engineering by t k nagasarkar and m s. Resistor applications resistors are used for. Electricity and electrical phenomenon have a lot of applications in our day to day life and they also gives a wide variety of well known effects such as lightning static electricity electromagnetic induction and the flow of electrical current. Its conducting properties may be altered in useful ways by introducing impurities doping into the crystal structure.
Download electric current and circuit diagrams cheat sheet pdf. There are a variety of types of electric motors are available in the market.