HW-_Generator_RMS_and_Transformer_HW

# The shaft then rotates with a frequency of 250 hz the

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cross-sectional area of the coil is perpendicular to the ground. The shaft then rotates with a frequency of 25.0 Hz. The horizontal component of Earth’s magnetic field at the location of the loop is 5.00 × 10 −5 T. Calculate the maximum EMF induced in the coil by Earth’s magnetic field. 3.88x10 -2 V 2) An AC generator consists of 45 turns of wire with an area of 0.12 m 2 . The loop rotates in a magnetic field of 0.118 T at a constant frequency of 60.0 Hz. The generator is connected across a circuit load with a total resistance of 35 Ω. What are the maximum induced EMF and CURRENT? 240.22V, 6.86A

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3) The maximum current that can pass through a light bulb filament is 0.909 A when its resistance is 182 Ω. a. What is the rms current conducted by the filament of the bulb? b. What is the rms potential difference across the bulb’s filament? c. How much power does the light bulb use? 4) A 996 W hair dryer is designed to carry a maximum current of 11.8 A. a. How large is the rms current in the hair dryer? b. What is the rms potential difference across the hair dryer? 5) In many transformers, the wire around one winding is thicker, and therefore has lower resistance, than the wire around the other winding. If the thicker wire is wrapped around the secondary winding, is the device a step-up or a step-down transformer? Explain.
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