Physics, 10.01.2021 19:00, dontcareanyonemo
7. A dynamo coil rotates 4200 rotation per minute in a magnetic flux of flux density 0.05
Tesla. If the number of turns of the coil is 100 turns and the area of each of them is 25
cm?. Calculate:
A. The maximum value of the e. m.f.
B. Its effective value
C. The instantaneous value of the e. m.f. when the coil rotates 1/12 rotation from the
perpendicular plane
Can anyOne solve No. C ?
Answers: 1
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Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius ν
=0.381meters and mass ν=3.1νν. initially ν"is on the ground and ν#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of ν#just before it strikes the ground. assume the pulley bearing is frictionless.
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Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 Β΅c of charge distributed uniformly along its length, and the other carries - 2.50 Β΅c distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?
Answers: 3
7. A dynamo coil rotates 4200 rotation per minute in a magnetic flux of flux density 0.05
Tesla. If...
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