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Q1. A circular loop of radius 11 cm lies in the plane of the paper. A constant magnetic field of 250 mT is directed into the paper. Find out the magnetic flux through the loop. (b) Same geometry as above but now the magnetic field decreases uniformly from 250 mT to zero in 0.5 s. Find the induced emf and the polarity of the induced current. (c) The circular loop is a copper wire of resistance 0.1 Ω. Illustrate the graph of current versus time.
Q2. A 3.57 kg block is drawn at constant speed 4.06 m along a horizontal floor by a rope exerting a 7.68 N force at angle of 15 degree above the horizontal. Work out the coefficient of kinetic friction between block and floor.
An experimental bicycle wheel is placed on a test stand so that it is free to turn on its axle. If a constant net torque of 5.00 N · m is applied to the tire for 3.00 s, Compute the friction torque
A machine is driven by a series of gears. The first gear has 12 teeth and rotates 25.0 times per minute. How many teeth does it have
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6 kg and the sign has a mass of ms = 16.3 kg. What is the tension in the wire
A 0.38-kg cord is stretched between two supports,7.6m apart. When one support is struck by a hammer, What is the tension on the cord
A 24V battery is connected in series with a resistor, R=4 ohms and an inductor L=2H. What is the energy stored in the inductor
0.015mol of a diatomic gas, with initial temperature 18 degrees C , How much heat is added during this process
A 2110-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by v(t)=At+Bt^2, What was the initial thrust due to the fuel
9.00 of aluminum at and 19.0 of copper are dropped into 51.0 of ethyl alcohol at. What is the initial temperature of Copper
An airplane is flying with a velocity of 82 at an angle of 25 above the horizontal. When the plane is a distance 125 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog will ..
Two metal spheres are separated by a distance of 1.1 cm and a power supply maintains a constant potential difference of 830 V between them. what is the distance between the spheres
An AC power generator produces 50 A (rms) at 3600 V. The voltage is stepped up to 100 000 V by an ideal transformer and the energy transmitted throughout a long-distance power line with a total resistance of 100 Omega. What is the rms current in l..
Due to the nature of the wastewater, the engineer wants to target the high end of this range. Find the proper diameter pipe to the nearest 2” (e.g., 2”, 4”, 6”, 8”, 10”, etc.) to achieve this design objective.
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