**Understanding Magnetic Field Direction at a Given Point****Problem Statement:**What is the direction of the magnetic field at the position of the dot?Options:A) Down.B) Out of the screen.C) Up.D) Into the screen.E) None of the above.**Explanation with Diagram Details:**The accompanying diagram illustrates a positively charged particle, marked by a red circle with a plus sign (‘+’) inside it. This particle is moving into the screen as indicated by the velocity vector **v** pointing into the screen. Next to this setup, there is a black dot denoting the point where the direction of the magnetic field needs to be determined.**Analyzing the Situation:**To find the direction of the magnetic field in this scenario, we can use the right-hand rule for moving charges in a magnetic field.1. **Right-Hand Rule Application:** - Point your thumb in the direction of the velocity of the positive charge (into the screen). - Curl your fingers in the direction that a positive charge would rotate, which involves using the natural curl of your fingers. Given that the positive charge is moving into the screen, your thumb points into the screen. If you curl your fingers in this direction, they will naturally move in a clockwise direction when viewed from the particle's starting point.2. This setup implies the magnetic field forms concentric circles around the path of the moving charge. Using the right-hand rule, on the right side of the charge's path (where the dot is positioned): - Your fingers will point downward below the charge and upward above the charge. - Since the dot is to the right and we need to align with the natural curl direction, the magnetic field at the dot will point downward.Therefore, the correct answer is:A) Down.

Direction of velocity v= negative z direction Position to find magnetic field in in = positive x…

Answered: What is the direction of the magnetic…

What is the direction of the magnetic field at the position of the dot? A) Down. B) Out of the screen. C) Up. D) Into the screen. E) None of above v into screen +)

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)...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

**Understanding Magnetic Field Direction at a Given Point**

**Problem Statement:**

What is the direction of the magnetic field at the position of the dot?

Options:
A) Down.
B) Out of the screen.
C) Up.
D) Into the screen.
E) None of the above.

**Explanation with Diagram Details:**

The accompanying diagram illustrates a positively charged particle, marked by a red circle with a plus sign (‘+’) inside it. This particle is moving into the screen as indicated by the velocity vector **v** pointing into the screen. Next to this setup, there is a black dot denoting the point where the direction of the magnetic field needs to be determined.

**Analyzing the Situation:**

To find the direction of the magnetic field in this scenario, we can use the right-hand rule for moving charges in a magnetic field.

1. **Right-Hand Rule Application:**
- Point your thumb in the direction of the velocity of the positive charge (into the screen).
- Curl your fingers in the direction that a positive charge would rotate, which involves using the natural curl of your fingers.

Given that the positive charge is moving into the screen, your thumb points into the screen. If you curl your fingers in this direction, they will naturally move in a clockwise direction when viewed from the particle's starting point.

2. This setup implies the magnetic field forms concentric circles around the path of the moving charge. Using the right-hand rule, on the right side of the charge's path (where the dot is positioned):
- Your fingers will point downward below the charge and upward above the charge.
- Since the dot is to the right and we need to align with the natural curl direction, the magnetic field at the dot will point downward.

Therefore, the correct answer is:
A) Down.

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