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NECO SSCE Physics 2023 past questions and answers

This 2023 NECO SSCE Physics set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2023 set with instant marking.

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Sample NECO SSCE Physics 2023 questions

1. Two point charges of 2 μC and 3 μC are separated by 0.30 m in air; what is the magnitude of the force between them? (Take k = 9.0 × 10^9 N m^2 C^-2.)
  1. 0.60 N
  2. 0.20 N
  3. 6.0 N
  4. 0.060 N

Answer: A. 0.60 N

Coulomb's law gives F = kq1q2/r^2 = (9.0 × 10^9)(2 × 10^-6)(3 × 10^-6)/(0.30)^2 = 0.60 N.

2. A charge of 2.0 C is placed in an electric field of strength 12 N/C; what force acts on the charge?
  1. 6 N
  2. 24 N
  3. 12 N
  4. 48 N

Answer: B. 24 N

The force is F = qE = 2.0 × 12 = 24 N.

3. What is the equivalent resistance of 6 Ω and 3 Ω connected in parallel?
  1. 9 Ω
  2. 3 Ω
  3. 2 Ω
  4. 1 Ω

Answer: C. 2 Ω

For parallel resistors, 1/R = 1/6 + 1/3 = 1/2, so R = 2 Ω.

4. What potential difference is required to drive a current of 2.5 A through a 4 Ω resistor?
  1. 2.5 V
  2. 6 V
  3. 8 V
  4. 10 V

Answer: D. 10 V

By Ohm's law, V = IR = 2.5 × 4 = 10 V.

5. A 10 V battery is connected across two resistors of 2 Ω and 3 Ω in series; what current flows in the circuit?
  1. 2 A
  2. 5 A
  3. 10 A
  4. 0.5 A

Answer: A. 2 A

The series resistance is 2 + 3 = 5 Ω, so the current is I = 10/5 = 2 A.

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