Question

Trina makes a diagram to summarize how to use the right-hand rule to determine the direction of the magnetic force on each type of charge. In the diagram, there are two intersecting circles. The circle on the left is labeled negative and the circle on the right is labeled positive. There is an x in the negative circle, a y in the intersecting area, and a z in the positive circle. Which labels belong in the regions marked x, y, and z?

1) x: thumb, for velocity y: fingers, for magnetic field z: palm of hand, for force
2) x: back of hand, for force y: thumb, for velocity z: palm of hand, for force
3) x: palm of hand, for force y: thumb, for velocity z: fingers, for magnetic field
4) x: palm of hand, for force y: fingers, for magnetic field z: back of hand, for force

Answer 1

The right-hand rule for determining the direction of the magnetic force on charges utilizes the thumb for velocity (v), fingers for magnetic field (B), and the palm for force (F).

Step-by-step explanation:

To determine the direction of the magnetic force on a moving charge using the right-hand rule, we utilize different parts of the hand to represent velocity (v), magnetic field (B), and the force (F). For a positive charge, the thumb indicates the direction of velocity (v), the fingers point in the direction of the magnetic field (B), and the force (F) on the charge is perpendicular and away from the palm. Conversely, for a negative charge, the force direction is into the palm.

Based on the information provided, the correct labels that belong in the regions marked x, y, and z are:

• x: thumb, for velocity (v)
• y: fingers, for magnetic field (B)
• z: palm of hand, for force (F)

Therefore, the appropriate option is:

1. x: thumb, for velocity (v)
2. y: fingers, for magnetic field (B)
3. z: palm of hand, for force (F)