Waec Model Questions Vol1 2020 Physics Question 30
Practice objective / multiple choice question 30 from the 2020 Waec Model Questions Vol1 Physics examination.
A magnetic field is created by a current-carrying wire. If the current in the wire is increased from 2 A to 5 A, calculate the change in the magnetic field strength at a distance of 0.1 m from the wire. Use the formula B = (μ₀ * I) / (2π * r), where μ₀ = 4π × 10⁻⁷ Tm/A.
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About This Question
This is Waec Model Questions Vol1 2020 Physics Question 30. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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