A force of 5400N is exerted on an aluminum rod, whose diameter is 6.2cm and length 30cm. Calculate the stress and strain in the beam if the Young’s modulus of aluminum is 70GN/m2. A strain gauge with a gauge factor of 4 and resistance of 350? is attached to the rod. Calculate the change in resistance. If the strain gauge is used in a bridge circuit and all other resistances are 350?, find the offset voltage of the bridge. Supply voltage of the bridge is 10V.
What will be an ideal response?
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Indicate whether the statement is true or false.
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