Neco Model Questions Vol1 2022 Physics Question 48

Practice objective / multiple choice question 48 from the 2022 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2022 Physics Objective / Multiple Choice Hard Difficulty
Question 48 NECO_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • objective

A rectangular conducting loop of resistance \(2.0\ \Omega\) has width \(0.10\ \text{m}\) and length \(0.30\ \text{m}\). It is pulled at constant speed into a uniform magnetic field of \(0.5\ \text{T}\) (directed into the page). The field region extends over a distance equal to the length of the loop. The loop starts completely outside the field and is fully inside after \(0.60\ \text{s}\). Determine (a) the magnitude of the induced emf (in volts), (b) the induced current (in amperes), (c) the magnetic force on the loop while it is entering the field (in newtons), and (d) the mechanical power required to pull the loop at constant speed (in watts).

Answer Options

A. ε = 0.050 V, I = 0.025 A, F = 1.3×10⁻³ N, P = 6.2×10⁻⁴ W
Correct Answer B. ε = 0.025 V, I = 0.0125 A, F = 6.3×10⁻⁴ N, P = 3.1×10⁻⁴ W
C. ε = 0.020 V, I = 0.010 A, F = 5.0×10⁻⁴ N, P = 2.5×10⁻⁴ W
D. ε = 0.030 V, I = 0.015 A, F = 7.9×10⁻⁴ N, P = 3.9×10⁻⁴ W
Correct Answer
B
Correct Option:
ε = 0.025 V, I = 0.0125 A, F = 6.3×10⁻⁴ N, P = 3.1×10⁻⁴ W

About This Question

This is Neco Model Questions Vol1 2022 Physics Question 48. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Physics examination.

Difficulty level: Hard .

View More Neco Model Questions Vol1 2022 Physics Questions More Neco 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