Draw a current from resistor
A resistor operated at 100V generates Joule heat at a rate of 20W. When placed across a 220V source, it will draw a current of:
A. 0.1 A.B. 2.27 A.C. 44 A.D. 0.44 A.E. none of these.
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Describe some of the issues or concerns (at least three) which would be addressed in deciding how to perform a statistical test of a hypothesis:
What is separation and what causes it? What are the differences between laminar and turbulent flow and their respective boundary layers?
Discuss the implications of: magnitude (from 0 to 1); sign ( + or -); and probability versus causality for the Correlation Coefficient (also known as the Pearson Product-Moment Correlation Coefficient).
The air temperature is maintained constant at 25 oC during this process as a result of heat transfer to the surroundings at 17 oC. Determine the entropy change of the air.
What is the skin friction coefficient and how does it vary over a flat plate (laminar and turbulent)? What is the effect of compressibility on skin friction?
Determine the nature of the first phase change that eventually occurs in the system as a result of this process, and b. determine the pressure st which this phase change occurs.
A single square loop of wire has a resistance of 2 Ohm. The length of each side of the square is 0.5m. A magnetic field whose direction makes an angle of 45 degrees with the normal to the plane of the loop increases at a rate of 10 milliTesla/s. W
What is the definition of the streamline and what are its uses? What is a perfect gas and what is the perfect gas equation of state?
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