Experiment 6

Adamson University College of Engineering Electrical Engineering Department

Series/Parallel Circuit Experiment No. 6

Group No. 5  Tuesday5!""  Tuesday5!""#$!"" #$!"" %.& %.& Date %erformed! 'anuary ()* +"(6 Date ,u-mitted! 'anuary +6* +"(6 A/* 'o0n 1enedict E.

I.

Procedures and Setup:

(. 2nsert t0e &odule D3 4(55E"( in t0e console and set t0e main sitc0 to N7 +. Determine t0e values of t0e t0ree resistors (* + and 4 on t0e ,E2E,%AA33E3 C2CU2T circuit -loc8 -y using t0e standard resistor colour code7 4. 9rite don t0e values in Ta-.6.(7 :. &easure t0e resistances (* + and 4 it0 a multimeter set as o0mmeter set as in ;ig.6.+a7 5. 9rite don t0e values in Ta-.6.(7 6. Connect t0e to resistances + and 4 as in ;ig.6.+- and measure t0e eerify t0at t0e sum of t0e -ranc0 measured current ?2 + and 24@ is eerify t0at t0e sum of t0e -ranc0 calculated currents ?2+ and 24@ is eerify t0at t0e currents 2 ( and 24 are t0e ones measured a-ove at steps +"@ and +(@ 7 +$. emove t0e cover of t0e &odications;aults simulator and set t0e sitc0 &: to t0e N position ?covered dot@7 +). -serve t0e ne measured values of t0e currents 2 ( ?2@ and 24 and rite t0em don in Ta-.6.:7 4". &ove t0e terminals of t0e ammeter ?+@ -eteen 1 and C and connect it0 a Bumper D and E7 4(. &easure t0e current 2+ and rite t0e value in Ta-.6.:7 4+. Compare t0e current values it0 modication and t0ose it0 no modication and try to locate t0e cause of t0e modication among t0e possi-le folloing ones! a. ( s0ort#circuited

-. + 0as increased c. 4 s0ort#circuited d. 4 0as decreased 44. emove t0e instruments and all t0e Bumpers and measure -ot0 t0e resistances (* + and 4 and t0e total resistance  T and rite t0e values in Ta-.6.(7 4:. Comment on t0e results7 45. eplace t0e sitc0 &4 in t0e  position7 Fault insertion 46. ,et t0e circuit as in ;if.6.+- to measure t0e parallel resistance p and t0e e( :.4$

Calculated F2 T?mA@> T TH

>+ (".$"  Ta-le 6.4

>4 (".$"

&easured

(4.:=

Calculated

2 T?mA@

2(

2+

24

2(

2+

24

(4.:5

(4.:5

$.):

:.5:$

(4.:5

$.)6

:.5(

 Ta-le 6.:

III.

Analysis:

n t0e rst part of t0e experiment* e measured t0e t0ree dierent resistor and add t0em in a parallel and series ay. 9eve seen t0at 0en adding parallel* it s0ould -e added -y implying ( over t0e total sum of t0e reciprocal values of t0e resistors. 90ile for series connection* you ill Bust add t0eir individual values. &oreover 0en connected in a series* t0e voltage -efore and after eac0 resistor adds up to t0e total voltage. 9it0 t0e same connection* current -efore and after eac0 resistor is t0e same. Ioever* in a parallel circuit* t0e voltage -efore and after eac0 resistor is t0e same. T0e currents -efore and after eac0 resistor add up to t0e total current.

IV.

Conclusion:

 T0e concept of series and parallel circuits s0os us t0e -asic electrical engineering concepts s0oing t0e dierence of t0e series circuit from t0e parallel circuit and t0e relations0ip -eteen t0e parameters involved in t0e 0ms 3a. A series circuit is a circuit 0aving a constant o of current t0roug0out t0e pat0 -ut 0aving a varia-le individual voltage t0at ill depend on t0e num-er of t0e resistors present. 9e can say t0at t0e resistance is directly proportional to t0e voltage 0ile maintaining t0e o of current constant. 9e can also conclude t0at t0e resistance is a load 0en t0e amount of load increases t0e o of current t0e voltage must also increase to 8eep t0e o of electricity. n t0e ot0er side of t0e line* t0e parallel circuit is a circuit 0ere t0e total voltage used is e