For the ideal \( R L \) circuit shown, the resistance is \( R=10.0 \Omega \), the inductance is ...

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For the ideal \( R L \) circuit shown, the resistance is \( R=10.0 \Omega \), the inductance is \( L=5.0 \mathrm{H} \) and the battery has voltage \( \varepsilon_{\text {bat }}=12 \) volts. Some time after the switch \( S \) in the circuit is closed, the ammeter in the circuit reads \( 0.40 \mathrm{~A} \). At what rate is energy being stored by the inductor at this instant (in Watts)?
(a) 0.40
(b) 1.0
(c) 3.2
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