Gce Model Questions Vol1 2024 Physics Question 46
Practice objective / multiple choice question 46 from the 2024 Gce Model Questions Vol1 Physics examination.
A rectangular coil of N turns, each of area \(A = 0.02\,\text{m}^2\), rotates in a uniform magnetic field of magnitude \(B = 0.30\,\text{T}\). The coil has a total resistance \(R = 0.50\,\Omega\). When it rotates at a constant angular speed \(\omega\) the average electrical power dissipated in the coil is \(P = 2.0\,\text{W}\). The peak induced emf must not exceed \(10\,\text{V}\). The number of turns N must be an integer between 10 and 100. Determine the smallest possible value of N that satisfies all the conditions and calculate the corresponding angular speed \(\omega\) (in rad s⁻¹).
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About This Question
This is Gce Model Questions Vol1 2024 Physics Question 46. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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