Voltage and current measurement

Extract

[...] In this experiment, we learnt how to measure the voltage and the current using a multimeter, as mean as to connect the voltmeter in parallel to measure the voltage and the amperemeter in series to measure the current. Then we will construct the given circuit to measure the experimental values and to compare them with the theoretical values using nodes analysis or superposition theorem. Process of measurement Given the circuit above, we put the source to 5V and then we built the circuit on the breadboard. [...]

[...] Same for Vbc and VR1: (returning to the initial circuit) Vbc = R2. I2 and since Vbc and Vb are parallel and there is no resistance between the two nodes: Vbc = Vb, thus: Vb= 4,025 V VR1 = R1. I1 = 220 x 4.43 x 10-3 = Vab = 0.975 V Third process We will use KCL to find the currents I1, I2, and I3: From the initial circuit: I1 = I2 + I3 We know I1, and we can calculate I2: I2 = VbcR2 = 4,025 mA, thus: I3 = I1 - I2 = 0.405 mA Results: Voltage measurement: Voltage Va Vb Vab Vbc VR1 Theoretical Experimental Current measurement: Current I1 I2 I3 Theoretical Experimental The circuit build: Conclusion In this experiment, we calculated our values for voltage, current by calculations and we verified the results by doing the experiment. [...]

[...] Voltage and current measurement Introduction In this experiment, we used a power supply and a digital multimeter to measure the voltage and the current. We measured these values using a closed circuit we created by implementing wires, and resistors on a protoboard. The purpose of the experiment is to test how voltage, current, polarity affect the v-i characteristics of the circuit. Objectives To learn the internal connections of a typical breadboard. To construct a breadboard layout from a schematic diagram. [...]