Numerade

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In the slides for the class on transformers (5-Chapter2a) it discusses the relationship between the number of coils on the primary and secondary of a transformer and the relative currents in and out. It states: Since there is no magnetic potential drop in the ideal core: $$N_p i_p(t) = N_s i_s(t)$$ $$i_p(t) / i_s(t) = N_s / N_p = 1 / a$$ Consider the construction of a magnetic circuit that a basic transformer. Given the information known about coils, the dot convention, and the reluctance of the transformer, demonstrate/explain why this ratio between turns and current exists.

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The amount of solute in a solvent is the ________ of a solution. O Diffusion O Reactivity O Heat capacity Concentration

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Too much money in a nation's economy leads to: Group of answer choices Business stagnation Inflation Too many rich citizens High unemployment

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The dividend growth model can be employed to value the equity of a company. This model bases the value of the firm's equity on future dividends. WXY Ltd paid a dividend of R5 per share on 30 June 20x1 which is the company's financial year end. The company expects to grow its dividend by a constant rate of 5% per year. The shareholders* required return (cost of equity) is 12% per year. What is the value of each share today? A. R65.00 B. R41.67 C. R105.00 D. R75.00 E. R100.00 • a. R105.00 • 6. R100.00 cR65.00 • d. R41.67 R75.00

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Which of the following is NOT a function of lipids? Provide energy to fuel the body's work Serve as the body's chief energy reserve Form the major components of cell membranes Provide the raw materials for body compounds such as keratin, hemoglobin, and enzymes

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For single slit interference, we use the equation D sin \theta = m \lambda . In this equation, the variable D represents...

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The type of reaction that links monomers together to form larger polymers is a ________ reaction.

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sequence analysis of metagenomic DNA would provide a culture independent way to detect diazotrophs in the enviroment

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3. Which of the following websites has a tool you could use to check your Internet connection speed FastChecking.net MyISPeedtest.com InternetSpeed.com SpeedTest.net

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Problem 4 is about discounted payback. Spitfire Aircraft Corporation has an investment policy that requires acceptable projects to recover all costs within 3 years. The corporation uses the discounted payback method to assess potential projects and uses a WACC of 10%. The cash flows for the 2 independent projects are: Year Project A Project B 0 -$100,000 -$80,000 1 40,000 50,000 2 40,000 20,000 3 40,000 30,000 4 30,000 0 In which investment project(s) should the firm invest?

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jeremy m.