In a Hall-effect experiment, a current of 3.0 A sent lengthwise through a conductor 1.0 cm wide, 4.0 cm long, and 10 mm thick produces a transverse (across the width) Hall potential difference of 10 mV when a magnetic field of 1.5 T is passed perpendicularly through the thickness of the conductor. From these data, find (a) the drift velocity of the charge carriers and (b) the number density of charge carriers. (c) Show on a diagram the polarity of the Hall potential difference with assumed current and magnetic field directions, assuming also that the charge carriers are electrons.

Q: A 0.230-A current is charging a capacitor that has circular plates 11.1 cm in radius. The plate…

A: Given data The current is given as I = 0.230 A. The radius of the circular plate is given as r =…

Q: The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the…

A: Given: Density of water =1000 kg/m3 Energy required to vaporize water =2256 kJ/kg Time current lasts…

Q: A velocity selector has a magnetic field of magnitude 0.20 T perpendicular to an electric field of…

A: Given: The magnitude of the magnetic field is B = 0.2 T The magnitude of the electric field is E =…

Q: (a) A velocity selector consists of electric and magnetic fields described by the expressions E EK…

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Q: When charges moving in piece of material are placed into a region of magnetic field, they feel a eEH…

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Q: Consider the mass spectrometer shown schematically in the figure below. The magnitude of the…

A: Given : The magnitude of electric field E = 3.00 x 103 V/m; Magnetic field B = 0.0450 T; Mass m =…

Q: (a) A velocity selector consists of electric and magnetic fields described by the expressions E = EK…

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Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

A: We have given that, a Hall-effect probe operates with a 120 -mA current. When the probe is placed in…

Q: In the figure, an electron with an initial kinetic energy of 4.50 keV enters region 1 at time t = 0.…

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Q: a)A velocity selector consists of electric and magnetic fields described by the expressions E = E…

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Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

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Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

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Q: In a mass spectrometer, a specific velocity can be selected from a distribution by injecting charged…

A: Magnetic field, B = 0.125 T Velocity, v = 4.2 × 106 m/s Electric field, E = ? V/m

Q: In the figure, an electron accelerated from rest through potential difference V₁=1.06 kV enters the…

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Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

A: Probe current: I = 120 mA = 0.12 A Probe is placed in uniform magnetic field: B = 0.076 T Hall…

Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

A: The given data is, 1. I=120 mA 2. Known uniform magnetic field, B=0.0800 T 3. Hall Voltage, VH=0.720…

Q: 450 T. Calculate the radius of the path for a singly charged ion having a mass m = 2.00 × 10 kg. xx…

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Q: Consider the velocity selector of a Mass Spectrometer. A charge with a velocity of 1300 m/s to the…

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Q: In the figure, an electron with an initial kinetic energy of 4.40 keV enters region 1 at time t-0.…

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Q: (a) A velocity selector consists of electric and magnetic fields described by the expressions E = Ek…

A: Given value--- magnetic field = 25 mT. energy = 600 eV. We have to find--- electric field?

Q: Consider the mass spectrometer shown schematically in the figure below. The magnitude of the…

A: Ion moves in circular path when the magnitude of electric force equals the magnetic force. So, the…

Q: In the figure, an electron with an initial kinetic energy of 4.10 keV enters region 1 at time t = 0.…

A: Concept: The Formula for the Force due to Magnetic Field is, Fm=qv→×B→ Thus, qvB=mv2Rhere,v=qBRmNow,…

Q: produces singly- doubly-ionize particles, both of which are accelerated (from rest) by an…

A: Solution: a. The accelerating voltage applied between  the electrodes provides the potential energy…

Q: A silver wire has resistivityp = 1.20 x 10-8 2-m and a cross-sectional area of 5.30 mm2. The current…

A: Part (a) Given: The resistivity of the wire is ρ=1.20×10-8 Ω·m. The cross sectional area of the…

Q: Problem 11: In a mass spectrometer, a specific velocity can be selected from a distribution by…

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Q: (a) A velocity selector consists of electric and magnetic fields described by the expressions E = Ek…

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Q: A straight conductor of length / moves with an acceleration a = 0.1 ms2 at the right angle to the…

A: Magnetic field ( B ) = 11.9 T Acceleration ( a ) = 0.1 ms-2   Time ( t ) = 20 s  Voltage ( V ) = 5 V

Q: Before entering a mass spectrometer, lons pass through a velocity selector consisting of parallel…

A: a for the motion between the plates charge,qElectric field,E=charge,qspeed,vmagnetic field,Bspeed, v…

Q: An infinitely long wire carries a current of I = 150 A. Randomized Variables I = 150 A  Part (a)…

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Q: A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic…

A: Answer (a)  ∆VH = IB/ngt  ngt / I = B / ∆VH             = 0.09/(0.640×10-6v)           = 0.09×…

Q: A rectangular slab (length 2.5 cm, width 1.5 cm, thickness 5.0 mm) of an unknown semiconductor with…

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Q: A velocity selector consists of an electric field in the z direction and a magnetic field in the…

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Q: (a) A velocity selector consists of electric and magnetic fields described by the expressions E = EK…

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Q: In the figure, an electron with an initial kinetic energy of 3.80 keV enters region 1 at time t = 0.…

A: 3.4×10−9sec

Q: A silver wire has resistivity p = 1.60 × 10-8 Q·m and a cross-sectional area of 2.20 mm2?. The…

A: Given data:ρ=1.6×10-8 ohm·mA=2.2 mm2=1.6×10-6 m2dIdt=2850 A/sI=180 AMagnitude of the electric field…

Q: A singly-ionized methane atom (mass of 2.66×10-26 kg) follows the dotted path shown when sent into a…

A: Given: R = 54 cm = 0.54 mL = 0.6 mN = 5900 loopsB = 9 T To find: Current run through the coils of…

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.