The force applied at the handle of the rigid lever as shown in figure 1 causes the lever to rotate clockwise about the pin B through an angle of 2 degree. Determine the average normal strain developed in each wire. The wires are unstretched when the lever is in the horizontal position. If the wires,in figure 1, AB, CG and FD are made of Aluminum, Copper and steel with a diameter of 3mm find the force stress in each of the wire and also the force applied.

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Q: 4 kN 50 mm 500 mm 4 kN 15 mm

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Q: A small aluminum alloy [E = 62 GPa] tee shape is used as a simply supported beam as shown. For this…

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Electric Circuit and Components

An electrical circuit or electrical network is a pre-determined pathway to make the electrons flow in the desired direction. The flow of electrons will set up a current flow in the circuit. Normally, the flow of electrical current is opposite to the flow of electrons. An electron is a fundamental sub-atomic particle of an atom possessing a negative charge. To initiate the flow of current and achieve the desired output, the electrical circuit should necessarily be composed of closed pathways. The pathways are made-up of good conductors of electricity such as aluminium and copper.