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The Hall-effect is used to determine the mobility of holes in a p-type silicon. Assume the bar resistivity is 20,000 ohm -cm the magnitude of Bz = 0.1 wb / m2, and d = w = 3 mm The measured value of the current and hall voltage are 100 mu A and 100 mV respectively. The hall coefficient RH is (m2 / coulombs).
Two spherical objects with a mass of 5.89 kg each are placed at a distance of 2.16 m apart. How many electrons need to leave each object
A wheel of diameter 5.8 cm has a 4 m cord wrapped around its periphery. Starting from rest, wheel is given a constant angular acceleration of 4.9 rad/s2. How much time it will take for the cord to unwind.
To warm up for a match, a tennis player hits the 56.0 ball vertically with her racket. what impulse did she impart to it
Water is flowing through a circular hole in a large, open tank at a rate of 126 ml / s. The hole is 3.75 meters below the surface of the water in the open tank. The area of the hole is 4 cm2
A particle with charge 94.5 nC is moving in the region where there is a uniform magnetic field of magnitude 0.45 T pointing in the negative x-direction. What is the magnetic field vector in vector notation
suppose the ball on point a is released at time 0. point a is on top with a declining slope at a 45 degree angle to
A hollow, thin-shelled ball of mass m rolls along a horizontal surface with a translational speed of v. What percent of its total kinetic energy is translational
A solid conducting sphere (radius=.05) has a charge of 0.25nC distributed uniformly on its surface. If point A is located at the center of the sphere and point B is 15cm from the center, what is the magnitude of the electric potential difference bet..
An uncharged capacitor is connected to a 44.0V battery until it is fully charged, after which it is disconnected from the battery. What will now be the voltage between the plates
a 3.5-kg block and a 1.9-kg block connected by a string that passes over a small pulley hang vertically. calculate the
write down the lorentz transformation matrix for motion along the z direction with velocity v.do the same for motion
q1. a rock of mass m 1.0 kg is tied to a string of length l 1.9 m and is twirled in a vertical circle. the speed v of
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