Gce Model Questions Vol1 2022 Physics Question 42

Practice objective / multiple choice question 42 from the 2022 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2022 Physics Objective / Multiple Choice Hard Difficulty
Question 42 GCE_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • objective

A rectangular coil of 50 turns, each side 0.10 m, rotates at a constant rate completing one revolution every 0.05 s in a uniform magnetic field of magnitude \(0.20\ \text{T}\). The plane of the coil is initially perpendicular to the field.\n(a) Determine the maximum induced emf in the coil.\n(b) The coil is connected to a resistor so that the average power dissipated in the resistor is \(2.0\ \text{W}\). Find the resistance of the resistor.

Answer Options

A. Maximum emf = 13.8 V, Resistance = 35.0 Ω
Correct Answer B. Maximum emf = 12.6 V, Resistance = 39.5 Ω
C. Maximum emf = 10.2 V, Resistance = 45.0 Ω
D. Maximum emf = 11.5 V, Resistance = 42.0 Ω
Correct Answer
B
Correct Option:
Maximum emf = 12.6 V, Resistance = 39.5 Ω

About This Question

This is Gce Model Questions Vol1 2022 Physics Question 42. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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