 Student Name: Mohammad Yousif Hassan ID: ST Fares Mohammad Ibrahim ID: ST Mohammad Basim ID: ST Mohammad Ahamd Grade: 12.10

 simple circuits is fundamental to understanding electricity and electronics.  The components of Simple Circuits is  Switch, lamp and battery  This is the labeled diagram

Series Circuits and Parallel Circuits  1) Series Circuits: is a circuit which has one current paths for electrons.  2) Parallel Circuits: is a circuit which has more than one current paths for electrons.

 Series Circuits:  Parallel Circuits:

 1: I is the same.  2:Vsoursce= V1+V2+V3  3:Requialent=R1+R2+R3

 Is a light on the Christmas tree,  If we take one light of this tree the hole lights will turn off because it is on one path so It is series circuit. 

 A 10-, 15-, and 5-resistor are connected in a series circuit with a 90-V battery. What is the equivalent resistance of the circuit? What is the current in the circuit? Find Voltage drop across R 3  R equivalent =R 1 +R 2 +R 3 R equivalent = =30  I= V source / R equivalent I=90/30=3A  Voltage drop across R 3 V 3 = I*R 3 3 *15= 45v

 1.Uses less current  2. R equivalent is high

 1)When component become faulty, the circuit become an open circuit and so no current will flows.

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