Final answer:
To find the inductance of the coil, we use the formula L = Φ / I, where Φ is the magnetic flux and I is the current. With the provided data, the inductance L calculates to be 2 mH.
Step-by-step explanation:
The student's question is asking to calculate the inductance of a coil given the number of turns, the current flowing through the coil, and the magnetic flux it creates. To find the inductance (L), we use the relationship between magnetic flux (Φ), inductance (L), and current (I), which is Φ = LI. From the information provided, we have a magnetic flux (Φ) of 10⁻⁵ Weber (Wb), a current (I) of 5 mA (which is 5 x 10⁻3 A), and 100 turns (N) in the coil.
Rewriting the relationship to solve for inductance, we get L = Φ / I. Plugging in the given values, L = (10⁻⁵ Wb) / (5 x 10⁻3 A) = 2 x 10⁻3 H or 2 mH, which is option B. Therefore, the correct answer to the student's question is 2 mH.