2. Find the magnitude and direction of the Lorentz force on a current carrying wire in a magnetic field. In both cases, the length of the wire inside the magnetic field is 150 cm. B 1.5 x 10-3 T B = 8.4 x 10-3 T Oi = 12.5 mA %3D 205° i = 1.60 mA
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Given Information:
The length of the wire (l) = 150 cm = 1.5 m
Case 1:
The magnetic field (B) = 1.5×10-3 T
The current in the wire (I) = 1.60×10-3 A
The angle between the wire segment and magnetic field (θ) = 2050
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- 2. An electron has a speed of 1.4 x 106 m/s. It travels through a 3.8 T magnetic field that is perpendicular to its velocity. An electric field is perpendicular to the B field and the velocity of the electron. The electron's velocity is constant. Find the magnitude of the electric field.5. The magnitude of the magnetic field around a single current-carrying wire with current I, Hol is given be B = where 4= 47 × 10-7 T·m/A. The formula for the force on a single 2πη current-carrying wire with current I, is F = ILB, if the current is perpendicular to the magnetic field. What is the magnitude of the force between two parallel wires, each carrying a 1A current, if the wires are 10 m long and 2 m apart.1. Consider a beam of electrons that moves from the electron gun towards the screen of a cathode ray tube due to the potential difference of 15kV. A pair of coils are placed outside a cathode ray tube and produce a uniform magnetic field of 250 μT across the tube. Calculate the force experienced by the electrons if the magnetic field is in place: a. parallel with the direction of the beam. b. Perpendicular with the direction of the beam. c. 50 degrees with the direction of the beam.
- 1. Take e/m to be the accepted value of 1.76-10¹¹ C/kg. For a plate voltage of 100 volts and a circular beam of radius 3.0 cm, what would you expect the required magnetic field B to be? Assume that the above magnetic field is produced by two Helmholtz coils, and assume that each coil has 119 turns, a radius of 106 mm, and a separation of 106 mm. What cur- rent I is required to achieve the expected magnetic field?Asap2. A proton with energy of 5.7 MeV enter the magnetic field B = 0.75 T perpendicularly to magnetic field lines (0 = 90°) a) What is the speed of the proton? (leV = 1.6x10-19 D (K = ½ mv²) b) What is the force on the proton? c) What is the radius of its rotations?
- 5. A proton (m₂ = 1.67 x 10-27 kg; e = 1.60 x 10-19 C) enters a 14 T field in a direction par- allel to the direction of the magnetic field. The proton is moving at 105 m/s. What is the mag- nitude of the force felt on the proton?2. The figure below shows a metal plate with a width of w = 2 cm and a thickness of t = 0.1 cm. An electric current I = 20A is applied to it and placed in a magnetic field B in the direction shown in the figure. When the applied magnetic field is 2 tesla, the resulting Hall voltage of 4.28 V. Based on the above, determine the electron drift velocity (Vd)!If a charged particle initially kept at rest experiences acceleration, which of the following statements is correct? I. The electric field must not be zero. II. The magnetic field must not be zero. III. The electric field may or may not be zero. IV. The magnetic field may or may not be zero.