All College Physics Resources
Example Questions
Example Question #2 : Electromagnetics
A charged particle traveling along the +x axis enters an electric field directed vertically upward along the +y-axis. If the charged particle experiences a force downward because of this field, what is the sign of the charge on this particle?
Possible Answers:
It is neutral
None of these
It is negative
It is positive
Correct answer:
It is negative
Explanation:
Positive charges in an electric field will experience an electric force that is in the same direction as the electric field. If the charge is negative, the force will be in the opposite direction of the electric field. Since the charged particle experiences a force which is opposite to the electric field, the sign of the charge must be negative.
All College Physics Resources
Popular Subjects
Algebra Tutors in Boston, GRE Tutors in Los Angeles, Spanish Tutors in Atlanta, ACT Tutors in Houston, Computer Science Tutors in Washington DC, Biology Tutors in Denver, Computer Science Tutors in New York City, LSAT Tutors in Phoenix, English Tutors in Los Angeles, Spanish Tutors in New York City
Popular Courses & Classes
LSAT Courses & Classes in Seattle, MCAT Courses & Classes in Boston, MCAT Courses & Classes in Miami, GMAT Courses & Classes in Chicago, GRE Courses & Classes in Chicago, ISEE Courses & Classes in Denver, MCAT Courses & Classes in Denver, GRE Courses & Classes in Houston, GRE Courses & Classes in Atlanta, GMAT Courses & Classes in San Diego
Popular Test Prep
LSAT Test Prep in San Francisco-Bay Area, LSAT Test Prep in Chicago, ISEE Test Prep in San Diego, LSAT Test Prep in Phoenix, GMAT Test Prep in Chicago, LSAT Test Prep in San Diego, SSAT Test Prep in Miami, GMAT Test Prep in San Diego, LSAT Test Prep in Boston, ISEE Test Prep in Washington DC