Igcse Model Questions Vol1 2025 Physics Question 18

Practice objective / multiple choice question 18 from the 2025 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2025 Physics Objective / Multiple Choice Hard Difficulty
Question 18 IGCSE_MODEL_QUESTIONS_VOL1 • 2025 • PHYSICS • objective

A long solenoid 0.50 m in length has 800 turns and carries a current that increases uniformly from 0 to 4.0 A in 0.20 s. A circular conducting loop of radius 5.0 cm is placed coaxially at the centre of the solenoid. (a) Find the magnitude of the induced emf in the loop during the current change. (b) If the loop has a resistance of 2.0 Ω, calculate the average induced current. (c) When the current has reached its maximum value, a proton moves perpendicular to the magnetic field inside the solenoid with a speed of \(2.0 \times 10^{6}\) m s\(^{-1}\). Determine the magnetic force on the proton.

Answer Options

A. ε ≈ 1.6×10⁻⁴ V, I_ind ≈ 8.0×10⁻⁵ A, F ≈ 1.3×10⁻¹⁵ N
B. ε ≈ 3.2×10⁻³ V, I_ind ≈ 1.6×10⁻³ A, F ≈ 2.6×10⁻¹⁴ N
C. ε ≈ 4.0×10⁻⁴ V, I_ind ≈ 2.0×10⁻⁴ A, F ≈ 3.2×10⁻¹⁵ N
Correct Answer D. ε ≈ 3.2×10⁻⁴ V, I_ind ≈ 1.6×10⁻⁴ A, F ≈ 2.6×10⁻¹⁵ N
Correct Answer
D
Correct Option:
ε ≈ 3.2×10⁻⁴ V, I_ind ≈ 1.6×10⁻⁴ A, F ≈ 2.6×10⁻¹⁵ N

About This Question

This is Igcse Model Questions Vol1 2025 Physics Question 18. It is one of the objective questions from the 2025 Igcse Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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