A transformer is to be designed to increase the 27-kV (rms) output of a generator to the transmission line voltage of 346 kV (rms). If the primary winding has 95 turns, how many turns must the secondary have?
a. 7
b. 15600
c. 1217
d. 26
e. 4358
c
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When humans get hot, they sweat in order to reduce their body temperature. Which of the key properties of life is this an example of?
A) growth and development B) reproduction C) response to environment D) order
Which of the following demonstrates the indeterminacy inherent in the microscopic [or atomic-level] world?
A) double slit experiment with electrons B) radioactive decay C) Both of the above. D) spontaneous creation of a positron-electron pair from a photon E) All of the above.
A stepped steel shaft with diameters d1 5 56 mm and d2 5 52 mm is twisted by torques T1 5 3.5 kN?m and T2 5 1.5 kN?m acting in opposite directions. The maximum shear stress is approximately:
(A) 54 MPa
(B) 58 MPa
(C) 62 MPa
(D) 79 MPa
Contrast the compositions of Jupiter's belts and zones
What will be an ideal response?