A changing magnetic field creates a(n)exerts force on the electrons and induces a current in the circuit.field within the wire; this

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University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 11CQ: A magnetic field exerts a force on the moving electrons in a current carrying wire. What exerts the...

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Similar questions

Show that the magnetic field of a thin wire and that of a current loop are zero if you are infinitelv far away.
If a charged particle moves in a straight line through some region of space, can you say that the magnetic field in that region is necessarily zero?
Can a constant magnetic field set into motion an electron initially at rest? Explain your answer.
If a current is 2.0 A, bow many turns per centimeter must be wound on a solenoid in order to produce a magnetic field of 2.0103 within it?
A circuit with current I has two long parallel wire sections that carry current in opposite directions. Find magnetic field at a point P near these wires that is a distance a from one wire and b from the other wire as shown in the figure.
What is the direction of the magnetic field that produces the magnetic force shown on the currents in each of the three cases in Figure 22.55, assuming B is perpendicular to I?
The Earths Van Allen belts (Fig. 30.34) are a natural magnetic bottle, trapping cosmic rays that spiral back and forth between the North and South Poles. Use the shape of a cosmic rays path to describe the variation in the magnetic field strength.
Calculate the magnetic field strength needed on a 200-tum square loop 20.0 cm on a side to create a maximum torque of 300 N. m if the loop is carrying 25.0 A.
Nonnuclear submarines use batteries for power when submerged. (a) Find the magnetic field 50.0 cm from a straight wire carrying 1200 A from me batteries to the drive mechanism of a submarine. (b) What is the field if the wires to and from the drive mechanism are side by side? (c) Discuss the effects this could have for a compass on the submarine that is not shielded.
What is the direction of the magnetic force on the current in earth of the six cases in Figure 22.53?
A bar magnet falls under the influence of gravity along the axis of a long copper tube. If air resistance is negligible, will there be a force to oppose the descent of the magnet? If so, will the magnet reach a terminal velocity?
In a region of space, a magnetic field is uniform over space but increases at a constant rate. This changing magnetic field induces an electric field that (a) increases in time, (b) is conservative, (c) is in the direction of the magnetic field, or (d) has a constant magnitude.

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A changing magnetic field creates a(n) exerts force on the electrons and induces a current in the ci field with N