1.  Student Name: Mohammad Yousif Hassan ID: ST1021080050 Fares Mohammad Ibrahim ID: ST1021080051 Mohammad Basim ID: ST1021080040 Mohammad Ahamd Grade: 12.10

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

3. 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.

4.  Series Circuits:  Parallel Circuits:

5.  1: I is the same.  2:Vsoursce= V1+V2+V3  3:Requialent=R1+R2+R3

6.  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. 

7.  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 =5 +10 + 15 =30  I= V source / R equivalent I=90/30=3A  Voltage drop across R 3 V 3 = I*R 3 3 *15= 45v

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

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

10.  http://www.ehow.com/facts_5936158_definit ion-simple-circuit.html#ixzz11qt8l5eB http://www.ehow.com/facts_5936158_definit ion-simple-circuit.html#ixzz11qt8l5eB