Question 4: Wheatstone Bridge (25 p.) Asked: 1 2 Load force Beam Strain 3 gauges 4 strain gauges are mounted on a metal beam as shown in the figure on the left. A load force is applied to the metal beam, causing the beam to bend and causing the strain gauges on the top to increase in length. At the same time the strain gauges at the bottom will decrease in length. a) Which strain gauges (1, 2, 3, 4) will get an increased resistance as a result of the applied load force? And which strain gauges will get a decreased resistance? (4 p.).