1. Explain why the magnetic field would not be unique (that is, not have a single value) at a point in space where magnetic field lines might cross. (Consider the direction of the field at such a point.) List the ways in which magnetic field lines and electric field lines are similar. For example, the field direction is tangent to the line at any point in space. Also list the ways in which they differ. For example, electric force is parallel to electric field lines, whereas magnetic force on moving charges is perpendicular to magnetic field lines.

1. Explain why the magnetic field would not be unique (that is, not have a single value) at a point in space where magnetic field lines might cross. (Consider the direction of the field at such a point.) List the ways in which magnetic field lines and electric field lines are similar. For example, the field direction is tangent to the line at any point in space. Also list the ways in which they differ. For example, electric force is parallel to electric field lines, whereas magnetic force on moving charges is perpendicular to magnetic field lines.

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

1. Two straight parallel wires, running north/south are separated by 10 cm and carry currents of 3A in the same direction (north). a) Find the magnitude and direction of the magnetic field at a point midway between the wires. b) Find the magnetic field 6 cm east of the "easternmost" wire. c) Calculate the force of one wire on the other. Is it attractive or repulsive?
Question 1: In the comparison of Ampère's law with Gauss's law, it turns out that ... (select all the correct statements) outside the conductor both fields are inversely proportional to r. outside the conductor both fields are proportional to r. by that comparison. Part (a) compares the right sides of the equations that represent Gauss's laws for electricity and magnetism. Select all the correct statements that are implied Part (b) Part (a) Onone of the other choices are correct. inside the conductor both fields are inversely proportional to r. inside the conductor both fields are proportional to r. Magnetic monopoles (charges) do not exist. Magnetic monopoles (charges) exist. Ampère's law as an equality between an integral and another expression. The other expression is... (select the best choice) Olenc Ocolenc Electric charges do not exist. OBoth right sides are always zero. One right side is always zero and the other is not. Part (b) None of the other choices Question 2: The…
1. Consider a 150 turn square loop of wire 15.5 cm on a side that carries a 56 A current in a 1.6 T field. What is the maximum torque on the loop of wire in N⋅m? What is the magnitude of the torque in N⋅m when the angle between the field and the normal to the plane of the loop θ is 14°? 2. Consider two two long, straight, parallel, current-carrying wires, separated by a distance d = 4.5 cm, as shown in the figure. The left wire is directed out of the page with current I1, and the right wire is directed into the page with current I2. The point P is a distance d from both wires, so the wires and the point form an equilateral triangle. If both wires are carrying a current of 3.5 A, what is the magnitude of the magnetic field, in teslas, at point P? If the current from the left wire is 3.5 A and the current from the right is 13.5 A, what is the magnitude of the magnetic field, in teslas, at point P?
Pr2. A very long, straight current-carrying wire is bent at the middle two different ways, so that it takes the shapes depicted in figures a) and b). Find the direction and magnitude of the magnetic field in both cases at the center C of the semicircle (of radius R = 10 cm), if the current flowing in the wire is I = 2 A. a) b) С.
1) Describe the two fundamental sources of a magnetic field. Draw an example of two different magnetic dipoles we have used in lab. Include their respective magnetic field lines in your diagrams below.
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. A circular current loop with a diameter of 3 m carrying a current of 2 A is placed in the xy-plane. A constant uniform magnetic field of 1.2 T cuts through the loop parallel to the y-axis. Find the magnetic force (in N) on the upper half of the loop. 2. A circular current loop with a diameter of 3 m carrying a current of 2 A is placed in the xy-plane. A constant uniform magnetic field of 1.2 T cuts through the loop parallel to the y-axis. Find the total magnetic force (in N) on the loop.
1.Calculate the force on a 47.38-microC positive charge due to the Earth’s magnetic field(1 T) if you throw it with a horizontal velocity of 10 m/s due west in a place where the Earth’s field is due north parallel to the ground. 2. A wire carrying a 12-A current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 1.1-N force on the 8 cm of wire in the field. What is the average field strength 3.During a demonstration of fiber optics, Mr. H uses an acrylic light pipe to demonstrate total internal reflection for light as it navigates its way through a curved medium, entering at one end and exitting at the other with very little loss of light along the way.If the acrylic has an index of refraction of 1.48, then determine its critical angle when surrounded by air.
Pr2. A very long, straight current-carrying wire is bent at the middle two different ways, so that it takes the shapes depicted in figures a) and b). Find the direction and magnitude of the magnetic field in both cases at the center C of the semicircle (of radius R= 10 cm), if the current flowing in the wire is I = 2 A. а) b) C.
3. Current head-on to point P: Consider the case where the current is heading straight toward the point where we want the magnetic field. What is the magnetic field at the point P shown? Hint: consider a small piece ds and think about what the Biot-Savart law tells you. Holds x f 4πr2 Think about the angle between ds and î. dB 7 D P
1. As you increase the amount of current, what happens to the strength of the electromagnet? 2. What kind of relationship do electromagnetic strength and electromagnetic current have? (think as you increase or decrease one what happens to the other?)
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.