w HistoryBookmarksPeopleTabWindowHelpPractice Test xSAT Practice Test #3| SAT Suit XO Magnetism Assessmentcom/formatives/6057e04c0e661559058a72deeO MapsS Advertisement89.101112131415 1617 1819 20Particles B is negative and Particle C is positiveParticle A is travelling equal to or faster than the speed of lightParticles C is negative and Particle B is positive19If a charged particle enters an external magnetic field and it moves in a circular orbit, then what must be true?The particle maintains a constant velocity in the field.The particle maintains a constant speed in the field.Positive work is done by the field on the particle.Negative work is done by the field on the particle.A negatively charged particle (-q) is moving parallel to a long straight wire carrying a constant current asillustrated in the figure below. Which direction is the magnetic force experienced by the charge?20étv22MacBook ProG Search or type URL#32$&4.78.9.QWY U* 3OO OOOOO

When a charged particle enters an external magnetic field, then it rotates in a circular orbit.…

19 If a charged particle enters an external magnetic field and it moves in a circular orbit, then what must be true? 1. The particle maintains a constant velocity in the field. The particle maintains a constant speed in the field. Positive work is done by the field on the particle. Negative work is done by the field on the particle.

19 If a charged particle enters an external magnetic field and it moves in a circular orbit, then what must be true? 1. The particle maintains a constant velocity in the field. The particle maintains a constant speed in the field. Positive work is done by the field on the particle. Negative work is done by the field on the particle.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A charged particle, after entering a constant magnetic field B, starts moving freely along a circular path in the magnetic field applied perpendicular to the particle’s velocity (v). What do you conclude about the particle’s kinetic energy (KE)? Group of answer choices KE remains unaltered as v and FB are perpendicular to each other KE increases under the constant magnetic force FB. KE decreases when magnetic force (FB) is perpendicular to the motion (v). KE and magnetic force FB are not correlated.
A cylindrical solenoid that is 40-cm long generates a uniform magnetic field of strength 1.4 T inside the solenoid when the current is 7.0 A. How many turns of a single coil are present in this solenoid? a. 40,000 turns b. 64,000 turns c. 56,000 turns d. 48,000 turns e. 32,000 turns
13. You have the apparatus shown in Figure P21.13. A circular metal plate swings past the north pole of a permanent magnet. The metal consists of a series of rings of in- creasing radius. Indicate the direction of the current in one ring (a) as the metal swings down from the left into the magnet- ic field and (b) as the metal swings up to- ward the right out of the magnetic field. Use Lenz's law to justify your answers. Figure P21.13 Metal plate Magnet N
Lightning occurred in a forest and a tree standing vertically in the forest provided a path along which the lightning passed. (i) Sketch a diagram showing the electric field and equipotentials at the point on the ground where the tree is located. Suppose 600×10−3 C of charge is conducted through the tree in 1.0 µs (ii) Calculate the average current. (iii) Sketch the temporary magnetic field created by this current. (iv) What will the magnetic field strength be 10 cm from the tree?
A conducting metal rod of length 5[cm] moves with speed 3[m/s] while immersed in a uniform magnetic field with strength 0.7[T]. What is the potential difference between the ends of the rod? B O A. 0[V] (the conducting rod is an equipotential body) B. 0.105[V] C. -10.5[V] D. +10.5[V]
If the speed of an electron traveling at right angles to the direction of a magnetic field is made 2.0 times as great, how many times as great is the force on the electron? O 0.25 times as great O 0.5 times as great O 4.0 times as great O 2.0 times as great
5. Two protons move parallel to the x-axis in opposite directions at the same speed v=3.0 × 105 m⁄s. At the instant shown, find the electric and magnetic forces on the upper proton if the distance between the two protons is r=5.0 × 10−10 m.
A circular wire of a diameter 18 cm placed in a uniform 5 magnetic field of 4 mT. The wire carries a current of 8 A. What is the maximum potential energy stored in the wire-field system? 814 ml A) 814 Wl B) 814J C) 3.26 ml D) 326 J E)
5. Two protons move parallel to the x-axis in opposite directions at the same speed v=3.0 x 105 m/s. At the instant shown, find the electric and magnetic forces on the upper proton if the distance between the two protons is r-5.0 x 10-¹0 m.
= The figure shows a solid metal object moving through a uniform magnetic field given by B (7.00 x 10-2T) k. The motion creates a potential difference of 1.30 x 103 V across the object, with the (unseen) bottom face negatively charged. What is the speed (m/s) of the object? d₁=5.00 x 102 m, d2= 3.00 x 102 m, d3 = 2.00 × 10² m. A do ds
13 A proton moves perpendicular to a uniform magnetic field B at a speed of 2.10 x 10' m/s and experiences an acceleration of 1.90 × 10 m/s- in the positive x-direction when its velocity is in the positive z-direction. Determine the magnitude and direction of the field. magnitude direction ---Select--- V
173% NASA and the military have long been interested in so-called “rail guns" to launch projectiles and payloads at very high velocities. A schematic of a rail gun is shown below, where there are two parallel rails separated by a distance d and connected to a powerful battery of voltage V, in a constant magnetic field B = Bok pointing out of the page. The projectile / payload can be modeled as a bar of mass m and resistance R which connects the two rails and completes the circuit. Assume the electrical resistance of the rails is negligible, but take there to be a constant force of kinetic friction with magnitude ƒ between the bar and the rails. (a) What is the current in the circuit when the bar is moving with velocity v? Remember to account for both the battery and the induced EMF. (b) What is the net force on the bar when it is moving with velocity v? (c) Using Newton's second law, F = ma, find a differential equation relating and v. (d) Verify that the solution to your differential…