Q8 · 2025 · Paper 1Simple familiar1 mark
QUESTION 8
A uniform electric field was produced in a vacuum using a set of parallel plates. A stationary electron was placed between the plates and then released, as shown.
If all gravitational effects are ignored, the stationary electron between the plates will
(A)
move at a constant velocity toward the positive plate.
(B)
travel in the same direction as the magnetic field lines.
(C)
accelerate in the opposite direction to the electric field lines.
(D)
remain stationary, as it is equally attracted and repelled by the plates.
WORKED SOLUTION
1 markAnswer C
ANSWER
C
Worked solution
The force on an electron is opposite the electric-field direction because its charge is negative, and the electron accelerates in the direction of that force. Option C.
Selects option C.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.