A 60 MH Inductor Is in a Series Circuit with a a Resistor

question 56

Multiple Choice

A 6.0 mH inductor is in a series circuit with a resistor and an ideal battery. At the instant the current in the circuit is 5.0 A the energy stored in the inductor is:

• A) 0
• B) 7.5 * 10^-2 J
• C) 15 *10^-2 J
• D) 30 *10^-2 J
• E) unknown since the rate of change of the current is not given

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