Neco Model Questions Vol1 2023 Physics Question 15
Practice objective / multiple choice question 15 from the 2023 Neco Model Questions Vol1 Physics examination.
A rectangular coil of \(50\) turns, each side \(0.10\ \text{m}\), rotates in a uniform magnetic field of \(0.20\ \text{T}\). The axis of rotation is perpendicular to the field. The coil's resistance is \(5\ \Omega\). The maximum induced emf measured is \(12\ \text{V}\). (a) Determine the angular speed \(\omega\) in rad s\(^{-1}\). (b) Calculate the average electrical power dissipated in the coil. (c) If the coil is instead connected to an external resistor of \(15\ \Omega\) (the coil's own resistance being negligible), find the new average power.
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About This Question
This is Neco Model Questions Vol1 2023 Physics Question 15. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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