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In a torus of inner radius 1.0m and outer radius 1.5m, a toroidal magnetic field of strength 5.0 tesla is required in the middle (i.e at R = 1.25m). The number of turns of wire is 2000.
a. Calculate the current that must pass through the wire to produce the required magnetic field.
b. If the wire is made of copper and is of cross sectional area 1cm^2, what will be the total power loss (due to resistive heating) in the wire. The length of the wire may be taken to be 3000m, and the electrical resistivity of copper is 1.7 x 10 ^ 8 omh m.
A 5.06 10-5 H solenoid is constructed by wrapping 63 turns of wire around a cylinder with a cross-sectional area of 9.70 10-4 m2 , Determine the change in the length of the solenoid
A 34-kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, How high does she rise during this interval
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
Calculate the terminal voltage for a battery with an internal resistance of 0.650? and an emf of 8.00V when the battery is connected in series with an 98.0?? resistor
A small glass bead has been charged to +19 nC. A metal ball bearing 1.0 cm above the bead feels a 0.025 N downward electric force
compute the linear speed due to the Earth's rotation for a person at a point on its surface located at 40o N latitude (this would be near the Ohio river valley, for instance). The radius of the Earth is 6.40 ξ 106 m. (For comparison, the speed of ..
The small spherical planet called "Glob" has a mass of 7.28 x 10^18 kg and a radius of 6.26 x 10^4 m. What was the initial speed of the rock
A 2.41 kg block and a 4.82 kg block are initially at rest on a frictionless, horizontal surface, with a compressed spring of negligible mass between them. How much does the kinetic energy of the system increase
What is the period of a simple pendulum with mass of 5 kg displaced 4o with a string length of 0.45 m near the Earth's surface
A 6,500 kg bus traveling at 25 m/s collides head on with a 1,300 kg car traveling at 40 m/s. Find the resulting velocity of the vehicles
An Olympic skier whose mass is 50 kg is moving at 25 m/s down a 20degree slope encounters a region of wet snow of coefficient of frictio Uk=0.55 which reduces her speed. Find the acceleration of the skier
how far from the woman will he be now. How various revolutions will the car have gone through when the magnitude of its total acceleration is 3.30 m/s^2.
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