Exercise 14.1 A cube of solid aluminium has a volume of 1.00 m at 20°C. What tomperature change is required to produce a 1% increase in the volume of the cube? (coefficient of linear expansion for aluminium = 22x104 "C) [151.5°C)
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- 1) Solve the following values in figure 1.0. a) Total capacitance, Ct b) Total charge, Qt c) Individual charge of (a) C1 (b) C2 (c) C3 FIGURE 1.0 C3 100 uF V1 1V C1 20 uF C2 15 uF (+1An iron ring elecromagnet has a relative permeability of 1250 when it is excited by a coil having 500 turns at 0.8 A. the mean length of iron parts is 48 cm, the cross-section of the core is 10 square cm and the air gap is 0.5 cm. What is its total reluctance?Four point charges are placed at corners of a square . At the top left is a charge of - 1 C, at the top right is a charge of - 2 C, at the bottom right is a charge of -3 Cand at the bottom left is a charge of - 4 C. What is the direction of the net electric force due to the four point charges on a positive charge Q located at the center of square ? O due North O due South O Sw O SE
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