waec model questions vol1 2021 physics
Objective • Question 22
Question 22
WAEC_MODEL_QUESTIONS_VOL1
•
2021
Two point charges are placed on the x‑axis. A charge +8 µC is at the origin and a charge -2 µC is at x = 0.30 m. (a) Find the position on the x‑axis where the net electric field is zero. (b) A test charge +1 µC is placed at that point and moved to the point x = 0.50 m. Calculate the work done by the electric field during this displacement.
Answer Options
Correct Answer
A.
0.126 J
B.
0.210 J
C.
0.158 J
D.
0.094 J
Correct Answer
A
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