Tuesday, August 2, 2011

Lecture - 1 Introduction to Basic Electronics

Lecture - 2 Electronic Devices 1

resistors

can be used to control voltage and current in circuit

there are some types of resistors

(1) fixed resistors it has constant amount of resistance

* carbon resistors

* wire wire wound resistors

*ceramic resistors

the law to calculate resistive of resistors

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the figure of resistors

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( 2 ) variable resistors

we can adjust the amount of resistance

there are many types of it like

* lap type wire wound

* bench built

* centre tap resistors

* rheostat

* potentiometer

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OHMs law

the current passes through resistance equal voltage drops    around resistance by resistance

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