In a region of interstellar space, electrons are traveling in helical paths. The magnetic field increases by a factor of 2.   (a) The radius increases by a factor of 4, the electron energy increases by 4. (b) The radius stays the same and the electron energy increases by a factor of 2 (c) The radius decreases by a factor of 4 but the electron energy stays the same (d) The radius decreases by a factor of 2 but the electron energy stays the same (e) The radius increases by a factor of 2 but the electron energy stays the same

Q: In the Bohr model of the hydrogen atom, in the lowest energy state the electron orbits the proton at…

A: speed of electron (v) = 2.2×106 m/sradius of circular orbit (r) = 5.3×10-11 m

Q: How much would you have to raisethe temperature of a copper wire(originally at20◦C) to increase its…

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Q: An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of…

A: Given values: Magnetic field,B=3.50 mT Angular momentum, L=3.00×10-25 Js Mass of electron,…

Q: ) a potential difference directly proportional to magnetic flux density.

A: Hall Effect is a common way of measuring the strength of a magnetic field. Hall potential Difference…

Q: In the figure, an electron accelerated from rest through potential difference V1=1.26 kV enters the…

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Q: In the figure, an electron accelerated from rest through potential difference V₁-1.04 kV enters the…

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Q: An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.29 T. If the…

A: Given: The magnitude of the magnetic field, B = 0.29 T The kinetic energy of the electron, K.E. =…

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: A conducting bar of length L = 0.40 %3D m rotates in a counterclockwise direction with a constant…

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Q: A particle has been ionized so that it has a charge +6.4 C, but it has an unknown mass.  The…

A: Cyclotron Motion When a charged particle of charge q enters a region of a magnetic field B→ with…

Q: An electron with an energy of 861 eV is moving in a straight path. What should be the magnitude of…

A: Write the expression for the kinetic energy and substitute the corresponding values to calculate the…

Q: The figure shows a metallic block, with its faces parallel to coordinate axes. The block is in a…

A: given data magnetic field = 0.021 T one edge length of block = 25 cm  block moved at 2.5 m/s to the…

Q: The figure shows a metallic block, with its faces parallel to coordinate axes. The block is in a…

A: Given:  Magnetic field, B = 0.023 T  Length of the block, L= 25 cm Velocity of the block, v = 3 m/s…

Q: In one experiment, a proton with a kinetic energy of 1 MeV goes around a circular path at w…

A: Kinetic energy of proton Kp = 1 MeV   We know, Mass of alpha particle = 4 × mass of a proton Charge…

Q: An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.29 T. If the…

A: a. the kinetic energy of the electron is

Q: A magnet has a coercivity of 1x10^3 A ⁄ m. What current should be delivered through a solenoid with…

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Q: An oxygen-16 ion with a mass of 2.66 x 10-26 kg travels at 5.00 x 106 m/s perpendicular to a 1.20-T…

A: Given value--- mass of 2.66 x 10-26 kg speed = 5.00 x 106 m/s perpendicular to a 1.20-T magnetic…

Q: In the figure, an electron accelerated from rest through potential difference V1=1.49 kV enters the…

A: Given that:V1=1.49 kVV2=164 Vd=17.6 mm=17.6×10-3 mq=-1.6×10-19C

Q: Q-2) An infinitely long cylinder has a radius of R=2n. Current density in the cable changes…

A: Given data, Current density in the cable is : J→r=Brmk^,      0≤r≤n-Arnk^,    n≤r≤2n where, A=6 ;…

Q: An electron starts from rest near the negative vertical plate of a set of parallel plates and…

A: When the electron is accelerated by a potential difference, it attains Kinetic energy which is given…

Q: Find the ratio of the diameter of aluminum to copper wire, if they have the same resistance per unit…

A: Given:  Aluminium and copper wire

Q: The figure shows a metallic block, with its faces parallel to coordinate axes. The block is in a…

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Q: An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of…

A: Given:-  An electron move in a circular path perpendicular to a constant magnetic field.  The…

Q: (a.) The acceleration voltage is 5.0kV . Calculate the speed of the of the electrons as they emerge…

A: Lorentz Force The force acting on a particle of charge q moving with velocity v→ under the influence…

Q: A cyclotron is to accelerate protons to a certain energy level. The superconducting electromagnet of…

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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: Alpha particles, each having a charge of +4qe and a mass of 6.64 × 10-27 kg, are accelerated in a…

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Q: Suppose that we observe that protons produced by an accelerator travel in a circular path of radius…

A: The mass of the proton, m=1.67×10-27 kg The charge of the proton, q=1.6×10-19 C The radius of the…

Q: In the figure, an electron accelerated from rest through potential difference V₁-1.33 kV enters the…

A: Given data: The accelerated potential, V1=1.33 KV=1.33×103 V The potential difference, V2=175 V The…

Q: In the figure, an electron accelerated from rest through potential difference V₁-1.10 kV enters the…

A: Solution:Given:m = mass of electron = 9.11 x 10-31 kgq = charge on electron = 1.60 x 10-19 CV1 =…

Q: moves circular pati perpendicuiar a magneuic ield of magnitude 0.263 9y of the electron J, ind trne…

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Q: The figure displays a region of uniform magnetic field B= 0.04k T directed out of the page. 2.0 MeV…

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Q: The figure displays a region of uniform magnetic field B= 0.04k T directed out of the page. A 2.0…

A: Kinetic energy is directly proportional to the mass of the object and to the square of its velocity.…

Q: Protons having a kinetic energy of 2.90 MeV are moving in the positive x-direction and enter a…

A: Given : K = 2.90 MeV = 2.90 x 106 eV B = 0.0370 T

Q: Problem 10: A magnetic needle with magnetic moment μ-0.065 Am2 is placed in a uniform magnetic field…

A: Part (a)The expression for the potential energy is,

Q: Problem 9: An electron beam is shot into a region where there is both an electric field pointing…

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Q: In the figure, an electron accelerated from rest through potential difference V1=1.26 kV enters the…

A: It is given that,

Q: . The radius of the path

A: Given; Magnetic field B=0.2 T Alpha particles (m=6.7×10-27kg,  q=+2e)Potential difference = 6.7…

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…

Q: A phosphate molecule PO of mass m = difference |AV| = 4.35 V and enters the mass spectrometer with…

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Q: A non-magnetic conducting wire of Radius R carries a aurrent I uniformly distributed over its…

A: Current , I = 1 A Radius = R = To find = magnetic energy per unit length .

Q: A uniform magnetic field of 2.00×10T is applied to put an electron into a circular orbit with…

A: Given Data : The magnetic field is given as B=2×10-3 T The angular momentum of the electron is given…

Q: In the figure, an electron accelerated from rest through potential difference V₁=1.07 kV enters the…

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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.