By Madeleine Catherine. Diagram. Publised at Saturday, December 23rd 2017, 20:46:14 PM. Starting to make sense? These are the basics and may even seem obvious or intuitive to you, such as the wires and if they are connected. Whenever you determine your specific field of electrical engineering, you may see more complex diagrams and symbols. You’ll learn also that different countries use different symbols. For example, of the two symbols for resistors above, the first one is used in the U.S., while the second is used in Europe. You will also learn about the various symbols used for switches, other power supplies, inductors, meters, lamps, LEDs, transistors, antennas, and much more.
By Valentine Sybille. Circuit. Publised at Saturday, December 23rd 2017, 04:38:48 AM. The real part and imaginary part of impedance are interpreted as a resistive part that dissipates energy and a reactive part that stores energy. Resistors can only dissipate energy and therefore their impedances have only a real part. Capacitors and inductors can only store energy and therefore their impedances have only an imaginary part. When resistors, capacitors, and inductors are combined, the overall impedance may have both real and imaginary parts. It is important to note that the definition of impedance preserves the definition of resistance.
By Bertille Solange. Diagram. Published at Sunday, December 24th 2017, 12:18:52 PM. Inductors are usually represented by either a series of curved bumps, or loopy coils. International symbols may just define an inductor as a filled-in rectangle.
By Cyrielle Marjolaine. Circuit. Published at Sunday, December 24th 2017, 11:56:04 AM. A simple low-pass filter circuit, which allows low frequency signals to pass through the circuit while attenuating high-frequency signals, can be made using a resistor and capacitor in series.The transfer function of this filter can be determined by analyzing the circuit as a voltage divider,
By Madeleine Catherine. Diode. Published at Sunday, December 24th 2017, 09:15:37 AM. When P and N type silicon are brought together during manufacture, a junction is created where the P type and N type materials meet, and holes close to the junction in the P type silicon are attracted into negatively charged N type material at the other side of the junction. Also, electrons close to the junction in the N type silicon are attracted into the positively charged P type silicon. Therefore along the junction between the P and N type silicon, a small natural potential is set up between the P and N semiconductor material with negatively charged electrons now on the P type side of the junction, and positively charged holes on the N side of the junction. This layer of opposite polarity charge carriers builds up until it is just sufficient to prevent the free movement of any further holes or electrons. Because of this natural electrical potential across the junction, a very thin layer has been formed between the P and N layers at the PN junction that is now depleted of charge carriers and so is called the Depletion Layer. When a diode is connected into a circuit therefore, no current can flow between anode and cathode until the anode is made more positive than the cathode by a forward potential or voltage(VF) at least sufficient to overcome the natural reverse potential of the junction. This value depends mainly on the materials the P and N layers of the diode are made from and the amount of doping used. Different types of diode have natural reverse potentials ranging from approximately 0.1V to 2 or 3V. Silicon PN junction diodes have a junction potential of about 0.6V to 0.7V
By Valentine Sybille. Diagram. Published at Sunday, December 24th 2017, 08:06:08 AM. A block diagram shows a higher level (or organizational layout) of functional units in a circuit (or a device, machine, or collection of these). It is meant to show data flow or organization between separate units of function. A block diagram gives you an overview of the interconnected nature of circuit assemblies or components.
By Valentine Sybille. Circuit. Published at Sunday, December 24th 2017, 07:45:54 AM. When a voltage is applied across a conductor, a current will begin to flow. The ratio between voltage and current is known as resistance. For most metallic conductors, the relationship between voltage and current is linear.
By Charlotte Myriam. Diagram. Published at Sunday, December 24th 2017, 05:42:09 AM. Variable resistors and potentiometers each augment the standard resistor symbol with an arrow. The variable resistor remains a two-terminal device, so the arrow is just laid diagonally across the middle. A potentiometer is a three-terminal device, so the arrow becomes the third terminal (the wiper).
By Cyrielle Marjolaine. Circuit. Published at Sunday, December 24th 2017, 03:27:31 AM. We all know about electricity. It is the flow electrons. Hence the word electricity is derived from the word electrons. A battery itself doesn’t work, if you hold it up in air, there would be no passage of electric current. Hence you need a circuit. In Simple terms an electronic circuit is a closed pathway for electrons to flow.
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