Question Detail

PHY 102 Coulomb's law and Electric Fields Objective Question

Question

For a point charge q that is negative, in what direction is the electric field (E) around it?
Options
A Radially outward from <i>q</i>.
B Radially inward toward <i>q</i>.
Correct Answer
C Perpendicular to the radius vector.
D The electric field is zero for negative charges.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 4 states: 'For q negative, E is negative and E is directed radially inward.' This is because a positive test charge, by definition, would be attracted to a negative source charge, hence the field points inward.

Hint

Remember the convention for the direction of the electric field: it's the direction of the force a positive test charge would experience.

Question Info