waec model questions vol1 2021 physics
Objective • Question 1
Question 1
WAEC_MODEL_QUESTIONS_VOL1
•
2021
Two point charges are placed on the x‑axis. Charge Q₁=+6 µC is at the origin and charge Q₂=‑3 µC is at x=0.40 m. (a) Find the position on the x‑axis where the net electric field is zero. (b) Calculate the electric potential at that point due to both charges. Give the potential in volts (use k=9.0×10⁹ N·m²·C⁻²).
Answer Options
Correct Answer
A.
1.16×10⁴ V
B.
9.5×10³ V
C.
1.05×10⁴ V
D.
1.30×10⁴ V
Correct Answer
A
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