6–62 A switching power supply requires an inductor that can store at least 1 mJ of energy. A list of available inductors is shown below. Select the inductor that best meets the requirement. Consider both meeting the specifications and cost. Explain your choice.

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LuH) MAX(A) COST EACH 10 9.2 $4.75 20 7.0 $5.00 50 5.5 $4.50 100 4.3 $4.75 150 3.8 $4.50 250 2.5 $4.75 500 2.1 $5.00