A strain gauge R(sg) with a gauge factor of 2.5 is used to measure strains within a steel support bar using a voltage divider circuit shown Fig. 4. Under no

strain, the gauge resistance R(sg) is 100 ohms Calculate the voltage output (Vout) under zero strain. The steel support bar is stained by 0.4%. Calculate the voltage output (Vout)- Discuss the drawbacks of the above circuit. Explain, with the help of a simplecircuit drawing, the way to mitigate the identified drawbacks.