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Experiment 5 Objective: To demonstrate voltage dividing and current dividing laws on a combined series-parallel circuit To Investigate Kirchhoffs Law current law and voltage law. Components and equipment required: R1 Brown-Red-Black-Silver R2 Brown-Gray-Brown-Gold R3 Brown-Black-Red-None RA Red-Red-Brown-Red Rs Brown-Red-Red-Gold DC Power Supply IAD2004 Analogue/Digital Trainer Multimeter Power supply leads Procedure: Voltage dividing law

R1 13 R3-330 E = 12V HE LA R5-160 R4=100 R2=220 12 Calculate and measure the voltage across each resistor and then complete table 1 on page 42 Current dividing law Build the circuit above then complete table 2 on page 43 Calculate and measure the current through each resistor and then complete table 2 on page 43 NB You will have to take the current readings one at a time.

Voltage dividing law: TABLE 1 Calculated Measured Voltage Voltage V Voltage 1 V V Voltage 2 V V < Voltage 3 V V Voltage 4 < V Voltage 5 V V Total Voltage Prove, E = V1 + V2 + V3 + V4 V V E = V1 + V2 + V5 11 Does the sum of volt drops equal total applied voltage?

Current dividing law: TABLE 2 Calculated Measured Current Current Current 1 mA mA Current 2 mA MA Current 3 MA mA Current 4 mA MA mA mA Current 5 mA mA Total Current Prove, 11 = 13 + 15 mA mA 12 = 14 + 15 mA ma Does the sum of branch currents drops equal total current? = (20)