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Silicon devices can be employed for a higher temperature limit (190°C to 200°C) as compared to germanium devices (85°C to 100°C). With respect to this, which of the following are incorrect? 1) Higher resistivity of silicon 2) Higher gap energy of silicon 3) Lower intrinsic concentration of silicon 4) Use of silicon devices in high-power applications Select the correct answer using the code given below:
Statement I: In four-bar chain, whenever all four links are used, with each of them forming a turning pair, there will be continuous relative motion between the two links of different lengths. Statement II: For a four-bar mechanism, the sum of the shortest and longest link lengths is not greater than the sum of remaining two links.
The figure shows a mechanism with 3 revolute pairs (between the links 1 and 2, 2 and 3, and 3 and 4) and a prismatic pair (between the links 1 and 4). Which one of the four links should be fixed to obtain the mechanism that forms the basis of the quick-return mechanism widely used in a shaper?
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: All chains are ropes Statement II: Some links are chains Conclusion I: Some ropes are links Conclusion II: All links are ropes
A certain semiconductor A is made by doping Aluminium to Silicon and another semiconductor B is made by doping Arsenic to Silicon. The conductivities of A and B will be
In a mess Pasta, Pizza, Burger, Lasagne, Nachos, Tortilla and Falafel are made for snacks from Monday to Sunday with the week starting on Monday. Pasta is made on the last day. Nachos are made in middle of the week. Tortilla and Pizza are made between Thursday and Sunday. Lasagne is made on Tuesday. Tortilla is made just 2 days after Falafel. When is burger made?
A partially circular chain has perimeter of 10cm and is made up of 2 cm links. How many links are present in total?
A chain is kept in square fashion with one of its side equal to 5 cm and is made up of 2 cm links. How many links are present in total?
Ina kinematic inversion, the relative motions between links of the mechanism change as different links are made the frame by turns.
An SCR is made of silicon and not germanium because silicon