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AP Physics C: Electricity & Magnetism 12.2 A Describe the Magnetic Field Produced By Moving Charged Objects Questions

Practise predicting magnetic fields from moving charges by using charge sign, velocity, geometry, and changing separation to determine direction and variation.

Syllabus
Effective Fall 2024
Course
AP Physics C: Electricity & Magnetism

Exam points

  • Use charge sign, velocity and superposition to find the magnetic-field direction between moving charges.
  • Predict how electric and magnetic fields vary as a moving charge changes its distance from sensors.

AP Physics C: Electricity & Magnetism 12.2 A Describe the Magnetic Field Produced By Moving Charged Objects Questions question 1

[Maximum number: 1]

Two small spheres have equal and opposite charges and are travelling parallel to each other with speed v to the right, as shown above. What is the direction of the magnetic field midway between the spheres at the instant shown?

A

Out of the page

B

Into the page

C

Toward the bottom of the page

D

Toward the top of the page

E

Undefined, since the magnitude of the magnetic field is zero.

Figure for Question AP Physics C: Electricity & Magnetism 12.2 A Describe the Magnetic Field Produced By Moving Charged Objects Questions question 1 — AP Physics C: Electricity & Magnetism
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