IUPUI PHYS 251 LAB Page 1 of 2 KIRCHHOFF’S LAWS OBJECTIVE To calculate the currents in a multiloop circuit using Ohm’s Law and comparing the results to those calculated with Kirchhoff’s Current and Voltage Laws EQUIPMENT 3 battery packs, circuit board, 2 white shunt connectors, 3 red 75-Ωresistive connectors, multimeter THEORY •Kirchhoff’s Current Law: ΣI= 0 at any node. •Kirchhoff’s Voltage Law: ΣV= 0 around any loop. •Ohm’s Law: V = IRfor any resistor. PROCEDURE 1) Measure the resistance of each redconnector (R1, R2, R3). 2) Set up the circuit shown below. 3) Measure the terminal voltage across each battery pack (E1, E2, E3) while they are powering the circuit board. 4) Measure the voltages across the red connectors (V1, V2, V3) and calculate their currents using Ohm’s Law: I1= V1/R1, I2= V2/R2, I3= V3/R3. 5) Use Kirchhoff’s Laws to calculate the currents I1, I2, and I3using only resistances R1, R2, R3and terminal voltages
has intentionally blurred sections.
Sign up to view the full version.