The magnetic field inside a long solenoid with 100 turns is 0.2 T when the current is 5 A. What is the length of the solenoid? (μ₀ = 4π × 10⁻⁷ H/m)
Lagos State University PHY102 2025 past question
- 3.14 × 10⁻³ m
- 0.1 m
- 0.4 m
- 0.02 m
Register free to see the answer and step-by-step explanation
More Lagos State University PHY102 2025 past questions
Related questions
- What is the SI unit of electric charge?
- Which law states that the force between two charges is directly proportional to the product of the charges and inversely proportional to th…
- If two charges q₁ = +3 µC and q₂ = −3 µC are placed 2 m apart, what is the magnitude of the force between them? (k = 9 × 10⁹ N m²/C²)
- An electric field is defined as
- The electric field inside a conductor in electrostatic equilibrium is
- Which of the following describes the direction of an electric field?
