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In a Hall experiment a conducting strip of thickness d = 100 meter is located in a magnetic field B = 0.05 T. The magnetic field is perpendicular to the direction of the strip along which there is a 10 Amp current. Determine the Hall voltage measured across the strip if the charge carrier density is 2.5 × 1028 m3 in this material?
Two point charges Q1 = -25 micro Coulombs and Q2 = +50 micro Coulombs, are separated by a distance of 12 cm. The electric field at the point P is zero. How far from Q1 is P?
a solid cylindrical disk has a radius of 0.25 m and it can rotate about a vertical axis.a. when a 45 n force is applied
A loudspeaker is generating sound in a room. At a certain point, the sound waves coming directly from the speaker (without reflecting from the walls) create an intensity level of 74.1 dB. The waves reflected from the walls create, by themselves, an i..
A circular area with a radius of 7.80cm lies in the x-y plane. What is the magnitude of the magnetic flux through this circle due to a uniform magnetic field B = 0.229T that points in the +z direction
A sphere of radius R1=24.5cm and mass M=1.20kg starts from rest and rolls without slipping down a 30 degree incline that is 10.0m long. Calculate its translational and rotational speeds when it reaches the bottom
In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, What is the angle of his final position relative to the island
A car with mass of 1000.0 kg accelerates from 0 m/s to 40.0 m/s in 11.0 s. Ignore air resistance. obtain the average mechanical power output of the engine
A woman inside an elevator is standing on a scale. Before the elevator starts moving the scale shows 50 kg, calculate the acceleration of the elevator if after the elevator starts moving upward the scale reads 70kg. What will the reading of the sc..
Two spherical drops of mercury each have a charge of 0.14nC and a potential of 310V at the surface. What is the potential at the surface of the new drop
A circular coil of wire with 10 turns and a 4.0 cm radius is located between the poles of a large electromagnet that produces a uniform magnetic field of 0.5T. Calculate the average induced emg across the ends of the loop
The weight of a metal bracelet is measured to be 0.100 Newton in air and 0.092 Newton when immersed in water. Calculate its density
an earthquake emits both s waves and p waves which travel at different speeds through the earth. a p wave travel 9000
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