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### You need to build a transformer that can step the…

01:56
Johns Hopkins University
Problem 44

# A 10 -Hz generator produces a peak emf of 40 $\mathrm{V} .$ (a) Write an expression for the emf as a function of time. Indicate your assumptions. (b) Determine the emf at the following times: $0.025 \mathrm{s}, 0.050 \mathrm{s}, 0.075 \mathrm{s},$ and 0.100 $\mathrm{s} .(\mathrm{c})$ Plot these emf-versus-time data on a graph and connect the points with a smooth curve. What is the shape of the curve?

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