Near a positive charge, the electric field points
(A) in circles around the charge.
(B) directly away from the charge.
(C) directly toward the charge.
(D) upward.
Near a positive charge, the electric field points
(A) in circles around the charge.
No. --- It points in the direction of the force on a positive charge.
Near a positive charge, the electric field points
(B) directly away from the charge.
Yes. In the direction of the force on a positive charge.
Near a positive charge, the electric field points
(C) directly toward the charge.
No. --- A positive charge repels positive test charges.
Near a positive charge, the electric field points
(D) upward.
No. Which way is "up"?
Near a negative charge, the electric field points
(A) in circles around the charge.
(B) directly away from the charge.
(C) directly toward the charge.
(D) upward.
Near a negative charge, the electric field points
(A) in circles around the charge.
No. --- It points in the direction of the force on a positive charge.
Near a negative charge, the electric field points
(B) directly away from the charge.
No. --- It points in the direction of the force on a positive charge.
Near a negative charge, the electric field points
(C) directly toward the charge.
Yes. --- Opposite charges attract.
Near a negative charge, the electric field points
(D) upward.
No. --- Which way is "up"?
(A) 0.1N upward.
(B) 0.1N downward.
(C) 1N upward.
(D) 1N downward.
(A) 0.1N upward. --- No.
The charge is negative.
(B) 0.1N downward. --- No.
Multiply the charge by the force.
(C) 1N upward. --- No.
The charge is negative.
(D) 1N downward. --- Yes.
F = (-0.0001C)(10,000N/C) = -1N