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A

Anonymous

Nov 22, 2024

Magnetic Force on a Bent Wire Conceptual Question MasteringPhysics?

The bent wire circuit shown in the figure (Intro 1 figure) is placed in a region of space with a uniform magnetic field directed along the +z axis. Electric current flows through the circuit as indicated in the diagram. Note that segments 2 and 5 are aligned parallel to the z-axis, while the remaining segments lie parallel to either the x-axis or y-axis.

Part A
Determine the direction of the magnetic force acting on segment 1, which carries current in the -x direction.
Enter the direction of the force as a sign (+ or -) followed by a coordinate direction (x, y, or z) with no spaces. For example, if the force points in the positive y direction, enter +y. If there is no magnetic force, enter 0.

Part B
Determine the direction of the magnetic force acting on segment 2, which carries current in the -z direction.
Enter the direction of the force as a sign (+ or -) followed by a coordinate direction (x, y, or z) with no spaces. For example, if the force points in the positive y direction, enter +y. If there is no magnetic force, enter 0.

Part C
Determine the direction of the magnetic force acting on segment 3, which carries current in the +y direction.
Enter the direction of the force as a sign (+ or -) followed by a coordinate direction (x, y, or z) with no spaces. For example, if the force points in the positive y direction, enter +y. If there is no magnetic force, enter 0.

Part D
Determine the direction of the magnetic force acting on segment 4, which carries current in the +x direction.
Enter the direction of the force as a sign (+ or -) followed by a coordinate direction (x, y, or z) with no spaces. For example, if the force points in the positive y direction, enter +y. If there is no magnetic force, enter 0.

Part E
Determine the direction of the magnetic force acting on segment 5, which carries current in the +z direction.
Enter the direction of the force as a sign (+ or -) followed by a coordinate direction (x, y, or z) with no spaces. For example, if the force points in the positive y direction, enter +y. If there is no magnetic force, enter 0.

Part F
Determine the direction of the magnetic force acting on segment 6, which carries current in the +x direction.
Enter the direction of the force as a sign (+ or -) followed by a coordinate direction (x, y, or z) with no spaces. For example, if the force points in the positive y direction, enter +y. If there is no magnetic force, enter 0.

Part G
Determine the direction of the magnetic force acting on segment 7, which carries current in the -y direction.
Enter the direction of the force as a sign (+ or -) followed by a coordinate direction (x, y, or z) with no spaces. For example, if the force points in the positive y direction, enter +y. If there is no magnetic force, enter 0.

2 Answers

A
Anonymous

Feb 03, 2025

It would probably help if you had the diagram. However, because I just dealt with this problem m’self I know how it looks.

The easiest way to do this is use your index finger to point in the direction of current, use the other three fingers on the same hand to point in the direction of the magnetic field, also keep them straight(most just use the middle finger) (IE it is always pointing toward you) and your thumb with show you the direction of the force.

So for Part A,

Point your index finger toward the left, your middle finger toward yourself and your thumb should be pointing upwards. Thus making the answer; +y.

For Part B,

When you try this one, you’ll see if is physically impossible (unless you break off your fingers) to point away from yourself with your index and point directly at yourself with your middle finger (keeping in mind you have to keep them straight). Thus making the answer; 0.

For Part C,

Point your index upwards, middle toward you. thumb should be pointing to the right. (+x)

Giving that much should be sufficient, I imagine you will be able to solve the rest yourself, Good luck!

A
Anonymous

Feb 21, 2025

No, the electromagnetic pressure, although thousands and thousands of situations better than gravitational pressure, it does not curve area time, in reality a huge mass including a planet or superstar, or fairly a black hollow, can curve area. both forces radiate outwards and reduce in skill inversely by technique of the sq. of the area, even though it truly is the position the similarity ends.

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