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The primary coil of an ideal transformer is connected to a 120-Vsource and draws 1.0A. The secondary coil has 800 turns andsupplies an output current of 10A to run an electrical device.
a) What is the voltage across the secondary coil?b) How many turns are in the primary coil?c) If the maximum power allowed by the device (before it isdestroyed) is 240W, what is the maximum input current to this transformer?
A student (m = 63 kg) falls freely from rest and strikes the ground. During the collision with the ground he comes to rest in a time of 0.040 s. From what height did the student fall
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