An electron is moving as shown in the diagram below (x to the right, y up, z out

Question

An electron is moving as shown in the diagram below (x to the right, y up, z out of page). At the location A what is the direction of the magnetic field made by the electron? Circle the letter of your choice: At the location B what is the direction of the magnetic field made by the electron? Circle the letter of your choice: At the location C what is the direction of the magnetic field made by the electron? Circle the letter of your choice: A proton is placed at the location C, traveling in the +X direction. What is the direction of the magnetic force acting on the proton due to the electron? Circle the letter of your choice:

Explanation / Answer

These are all by the right hand rule.

Part A)

The B field is zero since point A is directly behind the electron's movement

Part B)

At location B, the B field is out of the page. That is positive z direction.

Part C)

At location C, the B field is into the page. That is negative z direction.

Part D)

Since the electron and proton are moving in the same direction, parallel to each other, they are repelled

Thus the proton is forced upwards. That is the positive y direction.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.