Waec Model Questions Vol1 2019 Physics Question 23
Practice objective / multiple choice question 23 from the 2019 Waec Model Questions Vol1 Physics examination.
A rectangular coil of \(N=200\) turns and area \(A=0.01\ \text{m}^{2}\) rotates about an axis perpendicular to a uniform magnetic field of magnitude \(B=0.5\ \text{T}\). The coil starts from rest with its plane parallel to the field (\(\theta=0\)). A constant torque of \(\tau=0.02\ \text{N·m}\) is applied, and the coil has a moment of inertia \(I=0.01\ \text{kg·m}^{2}\). Find the magnitude of the induced emf at \(t=4\ \text{s}\). (Give your answer in volts to two decimal places.)
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About This Question
This is Waec Model Questions Vol1 2019 Physics Question 23. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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