Neco 2024 Physics Question 48

Practice objective / multiple choice question 48 from the 2024 Neco Physics examination.

Neco 2024 Physics Objective / Multiple Choice Hard Difficulty
Question 48 NECO • 2024 • PHYSICS • objective

A rectangular loop of wire of width 0.10 m and length 0.20 m rotates with angular speed 120 rad/s in a uniform magnetic field of 0.5 T. The loop has resistance 2 \Omega. Determine the value of the external resistance that maximizes the average power delivered to it and compute that maximum power.

Answer Options

A. R_{ext}=2 \Omega; P_{max}=0.05 W
Correct Answer B. R_{ext}=2 \Omega; P_{max}=0.09 W
C. R_{ext}=4 \Omega; P_{max}=0.045 W
D. R_{ext}=1 \Omega; P_{max}=0.045 W
Correct Answer
B
Correct Option:
R_{ext}=2 \Omega; P_{max}=0.09 W

About This Question

This is Neco 2024 Physics Question 48. It is one of the objective questions from the 2024 Neco Physics examination.

Difficulty level: Hard .

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