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Voltage and Current in Electric Circuits

             The purpose of this lab is to calculate the expected voltage and current in the branches of sample electric circuits. Estimate the error propagation using resistor nominal values and associated tolerances. Verify the accuracy of the predicted branch voltage and current values using instrumentation. And for this experiment I just use the NI Elvis board and NI multisim to calculate the expected voltage and current. In this experiment I just find out about the error and propagation between theoretical and experimental values. The experimental values of all three circuits are compared through their difference in their percent error. However the percent age error of the circuit 3 is impossible and the values of circuit 1&2 are close to each other. It is beneficial of engineers stand point, because from engineers can creat more efficient circuits.
             In this lab specifically based on the use of DMM, Elvis Board II, Multi-Sim, Resistors. As we basically follow the ohms law for the theoretical values. Ohm's Law deals with the relationship between voltage and current in an ideal conductor. This relationship states that: The potential difference (voltage) across an ideal conductor is proportional to the current through it. The constant of proportionality is called the "resistance", R. The platform for the circuitry in the lab is Elvis board II for manually calculating voltages and current in the circuit. As Elvis board is the NI Educational Laboratory Virtual Instrumentation Suite (NI ELVIS) modular platform delivers a hands-on lab experience for engineering curriculum. NI ELVIS features an integrated suite of commonly used instruments in a single compact form factor designed for education. The other thing I use is DMM for measuring the current and voltage manually in the lab. A multimeter or a multitester, also known as a VOM (Volt-Ohm meter or Volt-Ohm-milliammeter ), is an electronic instrument that combines several measurement functions in one unit.

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