Igcse Model Questions Vol1 2020 Physics Question 37

Practice objective / multiple choice question 37 from the 2020 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2020 Physics Objective / Multiple Choice Hard Difficulty
Question 37 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • objective

A rectangular conducting loop of resistance \(2\ \Omega\) has sides \(0.10\ \text{m}\) (the side that leaves the field) and \(0.20\ \text{m}\). It lies in a uniform magnetic field of magnitude \(0.5\ \text{T}\) that is perpendicular to the plane of the loop. The loop is pulled completely out of the field in \(0.30\ \text{s}\) at constant speed. Determine:\n(a) the magnitude of the induced emf while the loop is moving,\n(b) the current in the loop,\n(c) the magnetic force acting on the side being pulled, and\n(d) the mechanical power required to pull the loop at constant speed (ignore all other losses).

Answer Options

A. emf ≈ 0.025 V, current ≈ 0.012 A, force ≈ 1.2×10⁻³ N, power ≈ 3.0×10⁻⁴ W
B. emf ≈ 0.040 V, current ≈ 0.020 A, force ≈ 2.0×10⁻³ N, power ≈ 8.0×10⁻⁴ W
Correct Answer C. emf ≈ 0.033 V, current ≈ 0.017 A, force ≈ 1.7×10⁻³ N, power ≈ 5.6×10⁻⁴ W
D. emf ≈ 0.030 V, current ≈ 0.015 A, force ≈ 1.5×10⁻³ N, power ≈ 4.5×10⁻⁴ W
Correct Answer
C
Correct Option:
emf ≈ 0.033 V, current ≈ 0.017 A, force ≈ 1.7×10⁻³ N, power ≈ 5.6×10⁻⁴ W

About This Question

This is Igcse Model Questions Vol1 2020 Physics Question 37. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Physics examination.

Difficulty level: Hard .

View More Igcse Model Questions Vol1 2020 Physics Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support