Neco Model Questions Vol1 2017 Physics Question 50
Practice objective / multiple choice question 50 from the 2017 Neco Model Questions Vol1 Physics examination.
A rectangular coil of \(30\) turns has dimensions \(0.10\ \text{m}\) by \(0.20\ \text{m}\). It rotates about an axis along the side of length \(0.20\ \text{m}\) in a uniform magnetic field of \(B=0.5\ \text{T}\). The coil starts with its plane perpendicular to the field and rotates through \(180^{\circ}\) in \(0.25\ \text{s}\).\ (a) Find the angular speed \(\omega\) in rad s⁻¹.\ (b) Determine the maximum emf induced in the coil (in volts, to two decimal places).\ (c) If a \(10\ \Omega\) resistor is connected across the coil (coil resistance is negligible), calculate the average electrical power delivered to the resistor (in watts, to two decimal places).
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This is Neco Model Questions Vol1 2017 Physics Question 50. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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