2. What is the self-inductance of a coil with 450 turns if a steady current of 4.0 A generates a flux of 2.1 × 10-3 Wb in it?

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Chapter1: Units, Trigonometry. And Vectors
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What HaveI Learned So Far?
1. Suppose you have an induced EMF of 10 V existing in a coil. If the current in the coil
changes at a rate of 40 A/s, what is the coil's self-inductance?
2. What is the self-inductance of a coil with 450 turns if a steady current of 4.0 A generates
a flux of 2.1 × 10-3 Wb in it?
3. A solenoid with a 30-cm iron core has a cross-sectional area of 2.0 cm2. The wire is
wound around the core 10 times per cm of its length. Solve for the self-inductance of
the solenoid if the relative permeability of iron is 500.
Reflect Upon
What aspect(s) of Faraday's law did you find difficult to understand? How did you
manage to overcome this difficulty?
Transcribed Image Text:What HaveI Learned So Far? 1. Suppose you have an induced EMF of 10 V existing in a coil. If the current in the coil changes at a rate of 40 A/s, what is the coil's self-inductance? 2. What is the self-inductance of a coil with 450 turns if a steady current of 4.0 A generates a flux of 2.1 × 10-3 Wb in it? 3. A solenoid with a 30-cm iron core has a cross-sectional area of 2.0 cm2. The wire is wound around the core 10 times per cm of its length. Solve for the self-inductance of the solenoid if the relative permeability of iron is 500. Reflect Upon What aspect(s) of Faraday's law did you find difficult to understand? How did you manage to overcome this difficulty?
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