Neco Model Questions Vol1 2025 Physics Question 46
Practice objective / multiple choice question 46 from the 2025 Neco Model Questions Vol1 Physics examination.
A rectangular coil of \(N = 200\) turns and area \(A = 0.020\ \text{m}^2\) rotates at a constant angular speed \(\omega\) in a uniform magnetic field of magnitude \(B = 0.5\ \text{T}\). The coil is connected to an external resistor of resistance \(R = 10\ \Omega\). The average power dissipated in the resistor is measured to be \(12\ \text{W}\). Assuming the induced emf varies sinusoidally, determine the angular speed \(\omega\) in rad s\(^{-1}\).
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About This Question
This is Neco Model Questions Vol1 2025 Physics Question 46. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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