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| + | =ECE General Knowledge= | ||
| − | + | '''DEFINITIONS''': <br/> | |
| + | 1. Electrical Charge : – a property of subatomic particles that determines a particle’s electromagnetic interaction; measured in SI units Coulombs (C) <br/> <br/> | ||
| + | Elementary charge e = 1.602*10-19 C <br/> | ||
| + | Charge of electron –e = -1.602*10-19 C <br/> | ||
| + | Charge of proton e = +1.602*10-19 C <br/> <br/> | ||
| + | 2. Current :– rate of flow of charges through a fictitious boundary <br/><br/> | ||
| − | + | 3. Voltage : – difference in electrical potential; measured in volts <br/><br/> | |
| + | '''Basic Passive Electrical Properties and Components''': <br/> | ||
| + | 1. Resistance: – a measure of an object’s opposition to the passage of electrical current; measured in SI unit ohm (Ω)<br/><br/> | ||
| + | Resistor: – a two-terminal electrical component that resist the flow of charge <br/> | ||
| + | Symbol: [[Image:Example.jpg]]<br/><br/> | ||
| + | 2. Capacitance: – a measure of an object’s ability to hold charge<br/><br/> | ||
| + | Capacitor:— an electrical component consisting of a pair of conductors separated by a dielectric; measured in SI unit farad (F)<br/> | ||
| + | Symbol: [[Image:Example.jpg]]<br/><br/> | ||
| + | |||
| + | 3. Inductance:— a property of an electrical component through which a current induces an electromotive force (EMF) opposing the change in current<br/><br/> | ||
| + | Inductor— an electrical component that establishes inductance; measured in SI unit henry (H)<br/> | ||
| + | Symbol: [[Image:Example.jpg]] <br/><br/> | ||
| − | [ | + | References:<br/> |
| + | 1. Qi, Minghao (2007, Fall) ECE 201 Notes<br/> | ||
| + | Retrieved March 18,2010 from http://cobweb.ecn.purdue.edu/~ece201/handouts/Lecture_notes_Qi/Index.html <br/> | ||
| + | 2. Inductance. (n.d.) In Wikipedia. Retrieved March 18, 2010 from http://en.wikipedia.org/wiki/Inductance | ||
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| + | [https://kiwi.ecn.purdue.edu/rhea/index.php/User:Snikitha Snikitha] | ||
Revision as of 06:07, 4 May 2010
ECE General Knowledge
DEFINITIONS:
1. Electrical Charge : – a property of subatomic particles that determines a particle’s electromagnetic interaction; measured in SI units Coulombs (C)
Elementary charge e = 1.602*10-19 C
Charge of electron –e = -1.602*10-19 C
Charge of proton e = +1.602*10-19 C
2. Current :– rate of flow of charges through a fictitious boundary
3. Voltage : – difference in electrical potential; measured in volts
Basic Passive Electrical Properties and Components:
1. Resistance: – a measure of an object’s opposition to the passage of electrical current; measured in SI unit ohm (Ω)
Resistor: – a two-terminal electrical component that resist the flow of charge
Symbol: 
2. Capacitance: – a measure of an object’s ability to hold charge
Capacitor:— an electrical component consisting of a pair of conductors separated by a dielectric; measured in SI unit farad (F)
Symbol:
3. Inductance:— a property of an electrical component through which a current induces an electromotive force (EMF) opposing the change in current
Inductor— an electrical component that establishes inductance; measured in SI unit henry (H)
Symbol:
References:
1. Qi, Minghao (2007, Fall) ECE 201 Notes
Retrieved March 18,2010 from http://cobweb.ecn.purdue.edu/~ece201/handouts/Lecture_notes_Qi/Index.html
2. Inductance. (n.d.) In Wikipedia. Retrieved March 18, 2010 from http://en.wikipedia.org/wiki/Inductance
