Neco Model Questions Vol1 2020 Physics Question 44
Practice objective / multiple choice question 44 from the 2020 Neco Model Questions Vol1 Physics examination.
A long solenoid 0.50 m in length has 800 turns and carries a current that is increased uniformly from 0 to 3.0 A in 0.020 s. The solenoid is placed in a uniform external magnetic field of magnitude \(2.0\times10^{-4}\) T directed perpendicular to the solenoid axis. A circular loop of radius 5.0 cm, coaxial with the solenoid and surrounding it, measures the induced emf during this interval. Assuming the loop encloses the same magnetic flux as the interior of the solenoid, determine the magnitude of the induced emf (in volts). (Take \(\mu_0 = 4\pi\times10^{-7}\) T·m·A⁻¹.)
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About This Question
This is Neco Model Questions Vol1 2020 Physics Question 44. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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