MIXED CIRCUITS

R 1 =16  R 2 = 16  R 4 =32  R 3 = 32  120V Analyze the circuit: A) Calculate R total B) Calculate the current through each resistor. C) Calculate the voltage through each resistor. Parallel:

16  88 120V Series: R =16+8 R 1234 =24

Make a chart. Include all the resistors including any intermediate equivalent resistances and the total resistance. Then label on the chart, what values will be the same. 16  32  120V RIV Overall total voltage come from the battery

Make chart: 16  32  120V RIV These are in parallel so their voltage is the same along with the total voltage All these numbers will be the same.

Make chart: 16  120V RIV These are in series so their current is the same along with the total current All these numbers will be the same. 88

Fill out the chart with V=IR RIV V = IR 120 = I (24) I = 5 A V = IR V = (5) (8) V = 40 V V = IR 40 = I (16) I = 2.5 A V = IR V = (5) (16) V = 80 V V = IR 40 = I (32) I = 1.25 A

24  120V I=V/R I=120v/24  I=5 amps 5amps Another way to do the problem (without the chart)

16  88 120V 5amps V=IR V=(5)(16) V=80volts 80volts V=IR V=(5)(8) V=40volts 40volts 120volts

16  32  120V 80volts 40 volts 5 amps I=V/R =40volts/16  =2.5 amps I=V/R =40volts/32  =1.25 amps 5 amps