A velocity selector consists of electric and magnetic fields described by the expressions  E= Ek  and  B= B ĵ, with B = 17.0 mT. Find the value of E such that a 800-eV electron moving in the negative x direction is undeflected.  kV/m

Q: A charged molecule of 0.5 x 10-15 C passes through a velocity selector of a mass spectrometer with a…

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Q: A proton (carrying a positive charge) travels with speed 2.5x105 m/s to the right and enters between…

A: AIM: To determine the strength and direction of the magnetic field applied to a given system. GIVEN:…

Q: investigate the speed and the kinetic energy of a proton as it passes through a perpendicular and…

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Q: A velocity selector in a mass spectrometer, like the one shown below, uses a 0.126 T magnetic field.

A: In a velocity selector in mass spectrometer, the electric and magnetic field are related to each…

Q: Q#02. A strip of copper 150um thick and 45cm wide is placed in a uniform magnetic field B of…

A: Given- Thickness (t) = 150 μm = 150×10-6 m Width (b) = 45 cm = 0.45 m Magnetic field (B) = 0.85 T…

Q: A mass spectrometer (see figure below) operates with a uniform magnetic field of 21.0 mT and an…

A: Magnetic field B = 21.0 mT = 0.021 T Electric field E = 3.55 ✕ 103  V/m Mass of alpha particle ma =…

Q: A velocity selector is tuned to allow an electron with a speed of 562858 m/s through with no…

A: Given that, Selected velocity(v) = 562858 m/s  Applied magnetic field (B) = 8.9mT  We have to…

Q: A single conductor of length 40 mm is positioned at a 30° angle to a magnetic field of density 300…

A: The magnetic force on the current carrying wire placed in the magnetic field  is given by F=i(l×B)…

Q: A particle with a charge -1.24X10^-8 C is moving with instantaneous velocity v=(4.19x10^4 m/s)i +…

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Q: Consider a straight conductor of length 15 cm. The conductor moves at right angles to a magnetic…

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Q: electron in a cathode ray tube has a kinetic energy of 102 eV and moves in a direction perpendicular…

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Q: What is the magnitude and direction of the acceleration on the electron in a 3T magnetic field ( -k)…

A: Here an electron is moving through an area having both the electric and magnetic fields. Charge on…

Q: The figure below shows a mass spectrometer. Particles with charge -e = -1.60×10¬19 C enter a…

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Q: Part (d) Express the magnitude of the magnetic force, FB, acting on the charge in terms of By, Vz…

A: Given: Charge, q=9.6×10-19 C Velocity, v→=vzk^=9500 k^ m/s Electric field, E→=Exi^=55 i^ V/m…

Q: A (7.4020x10^-1)-m radius cylindrical region contains a uniform electric field that is parallel to…

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Q: A ferromagnetic material has a magnetic susceptibility of 5000. If a magnetic field of 0.1 Tesla is…

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Q: An electron is given a velocity of 1.2x104m/s through a magnetic field. As the electron is observed,…

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Q: A uniform electric field of 7.42 V/m west and a uniform magnetic field of 7.78 T west exist in a…

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Q: An electron is moving along +x direction with a velocity of 6 x 106 ms-. It enters a region…

A: Given,velocity of electron, v = 6×106 msElectric field, E = 300 Vcm along +y direction,

Q: An electric field exists between a pair of circular metal plates measuring 3.00 m in radius. The…

A: To find the strength of the magnetic field on the edge of the plates at the end of the 33.0-second…

Q: A mass spectrometer is a device that can sort ions based on their mass to charge ratio.   Given the…

A: Given values:v = 1.5x108 m/sq = 1.602 x 10-19 C    (Charge on proton)B = 1.3 Tm = 1.672 × 10-27 kg…

Q: What is the maximum force (in N) on an aluminum rod with a 0.200 µC charge that you pass between the…

A: Force exerted on a charged object when it passes through a magnetic field is known as Lorentz force.…

Q: A 5.47 C point charge is moving with a speed of 6.98 m/s. It is moving perpendicular to a magnetic…

A: Charge (q) = 5.47 C  Speed (v) = 6.98 m/s  Magnetic field (B) = 6.28 T

Q: hat is the radius of a proton's trajectory when it moves at 2.4x106 m/s perpendicular to a magnetic…

A: Given: The speed of the proton is 2.4x106 m/s perpendicular to the magnetic field. The strength of…

Q: Consider a straight conductor of length 14.6 cm. The conductor moves at right angles to a magnetic…

A: Write the given values with the suitable variables. L=14.6 cm=0.146 mB=10-3 Tε=2.5×10-5 V Here, L,…

Q: 0.5 A of current passes through a 40 cm long wire. The wire is in a magnetic field and experiences a…

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Q: Problem 2:   A negative charge of q = -3.2 × 10-17C and m = 2.8 × 10-26 kg enters a magnetic field B…

A: Given: The charge on the particle is -3.2x10-17 C. The mass of the particle is 2.8x10-28 kg. The…

Q: A metal strip 5.00 cm long, 0.800 cm wide, and 0.700 mm thick moves with constant velocity through a…

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Q: A magnetic field is oriented at an angle of 57 ∘ to the normal of a rectangular area 4.8 cm by 6.6…

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Q: A velocity selector in a mass spectrometer uses a 0.130 T magnetic field.  a. What electric field…

A: Part A.  Using force balance on charged particles moving through velocity selector: Electric force =…

Q: A wire of length 0.45 m carries a current of 25 A. In the presence of a 0.06 T magnetic field, the…

A: Given that, L=0.45 mI=25 AB=0.06 TF=0.19 N

Q: A velocity selector is tuned to allow an electron with a speed of 576333 m/s through with no…

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Q: An electron has an initial velocity of (9.70+ 15.7 k) km/s, and a constant acceleration of (1.61 ×…

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Q: 1. A 25 cm rod moves at 5.6 m/s in a plane perpendicular to a magnetic field of strength 0.34 T. The…

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Q: A uniform electric field of 7.82 V/m west and a uniform magnetic field of 5.31 T west exist in a…

A: Electric field = 7.82 Vm due west Magnetic field = 5.31 T due west particle = electron velocity of…

Q: n a photographic emulsion, the path of a proton moving perpendicular to a uniform 1.32-T magnetic…

A: r = mv/qB     = p/qB     = 2mk.E/qB r = 2mk.E/qB 3.0*10-2 = 2*1.61*10-27*kE/1.6*10-19*1.32

Q: In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar…

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Q: A proton enters a region of uniform magnetic feild (B) = (0.020 I)T and a uniform electric feild E .…

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Q: An electron has an initial velocity of (10.0j + 14.5k) km/s and a constant acceleration of…

A: Given:- The initial velocity of the electron is as vi= 10j^+14.5k^ km/s vi= 10×103j^+14.5×103k^ m/s…

Q: Tutorial Exercise In an experiment designed to measure the Earth's magnetic field using the Hall…

A: Given that  thickness t = 0.415 cm                     current = 8 A         hall voltage = 5.52…

Q: An electron moves in a circular path perpendicular to a magnetic field of magnitude 898 mT. If the…

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Q: An electron has an initial velocity of (11.2 + 16.8 k) km/s, and a constant acceleration of (1.63 x…

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Q: A proton is moving under the combined influence of an electric field (E = 1747 V/m) and a magnetic…

A: Given-               electric field (E) = 1747 V/m               magnetic field (B) = 1.37 T      ,…

Q: A velocity selector is tuned to allow an electron with a speed of 280279 m/s through with no…

A: Speed (v) = 280279 m/s  Magnetic field (B) = 7.8 mT

Q: An electron encounters an E and B fields. B field is given by B = 0.1 j T. Electron experiences a…

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Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.