Page 68 - The Basics IA by ETron Circuit Labs

ETron Circuit LabsLab 34 Ohm’s LawObjective:In this Lab you will learn and measure how Ohm’s Law works.Introduction:Ohm’s Law states that the voltage is equal to the resistance times the current. It is written E = I x R (E is voltage in volts, I is the current in amperes, and R is resistance in Ohms)In this Lab you will connect a 10K Ohm resistor to a 9-volt battery and measure the battery voltage.Then, you are going to measure the amount of current flowing in this circuit.Next, using Ohm’s Law, you are going to insert your measured battery voltage, your measured current, and your measured resistance value into the Ohm’s Law formula to verify that Ohm’s Law really works.ProcedureStep 11.Put the red lead of the battery snap in hole 21a and the black lead in 22f, as shown in the picture.2.Connect a 9-volt battery to the Battery Snap.3.Connect a 10K Ohm resistor from hole 21b to 11b.4.Put a solid wire in hole 11d to 22j.5.Set the knob on your digital multimeter to measure the voltage of the battery as shown in the picture on this page.6.Your meter should show about 9 volts.Step 21.Measure the current in the circuit. Review the schematic.2.Build the circuit as shown in the picture and attach 9-volt battery to the Battery Snap.3.Set the meter to measure about 20 mA or more, and then connect the multimeter leads between the loose ends of W1 and W2. The meter should show about 1 milliampere of current flowing.It should measure about 0.001 Amps (1.00 mA).If you do not have a multimeter scan the link below to purchase or visit us at ETRonCircuit.comStep 1669.00 v