You Need an Inductor That Will Store $20 \mathrm {~J}$ Of Energy When A

question 145

Multiple Choice

You need an inductor that will store $20 \mathrm {~J}$ of energy when a $3.0$ -A current flows through it. What should be its self-inductance?

• A) \(90 \mathrm { H }\)
• B) \(60 \mathrm { H }\)
• C) \(4.4 \mathrm { H }\)
• D) \(3.7 \mathrm { H }\)

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