Why we use heater in busbar and motors and generator? And can we start them without...
(a) Why are de series motors used to start heavy loads? (b) Show that at maximum efficiency of a de generator, the variable loss equals constand los (c) A shunt generator delivers 450 A at 230 V and the resistance of the shunt Sield and aanure are 50 Ω and 0.03 Ω respectively. Calculate the generated emf V transformer takes a no load current of 7.5 A and absorbs 190 W if the priuy , dote uine uae(i) core iss...
The use of arrays opens up several possibilities for us. Why would we want to use them? For ordinary arrays, we can use them even if we do not know the total number of data values to be processed. One of the more interesting features of arrays involves the ability to create execution time arrays at program run time. This is a pretty powerful feature of programming. Identify some arrays used in your organization or an organization for which you...
An Electric Generator and an Electric Motor How are electric motors related to electric generators? Find the device pictured below, which is a direct-current electric generator. In this case, you provide the mechanical means of rotating the rotor by turning the crank. Plug the wire with dual alligator clips into the end of the electric generator, and attach these clips to a light-emitting diode (LED): hand-operated electric generator LED box Electric currents created by the magnetic forces present in a...
Tthe Van de Graaff generator and sphere we have been assuming since the start that they are not polarizing each other. This is an approximation. In this question we will start to be able to assess how good this approximation is ? (a) Use the approximation that the Van de Graaff generator and ball are uniformly charged spheres to find the E-field very close to the surface of the Van de Graaff generator, at the point where the +ve x-axis...
What are cookies? Can we use them to store visitors’ passwords or their credit card information? Why?
Why can we not use water as a solvent for the reaction of cyclopentadiene and maleic anhydride? Is it possible to convert between the two products without using the corresponding precursor ( ethyl acetate) ? How?
explain what are critical reading skills and why do we use them?
Explain why there are no known motors that use intermediate filaments as tracks?
In my homework problem 38, we randomly select 1235 adults without replacement from a region with 15,958,866 adults. Are the selections independent or dependent? Please use the definitions to answer. Pleaser also consider the discussion about sampling with and without replacement. Now, if the events are dependent, can we treat them as independent? Why or why not?
When will we use Binominal Distribution or Poisson Distribution? And explain why we use them in the questions follows: 1. Suppose 1.5 percent of the antennae on new Samsung cell phones are defective. For a random sample of 200 antennas, find the probability that: None of the antennae is defective. 2.A renowned psychologist is studying the daytime television viewing habits of college students. She believes 45 percent of college students watch soap operas during the afternoon. To further investigate, she...