A particular instrument can be modeled as a \(470-\Omega\) resistor. It is protected by a \(50-\mathrm{mA}\) fuse with negligible resistance. It needs \(1 \mathrm{~W}\) to operate correctly. The available source can be modeled as a \(120-\mathrm{V}\) source with a \(100-\Omega\) series resistor as shown in Figure P \(3=65\). Design a suitable interface that will not cause the fuse to blow yet deliver \(1 \mathrm{~W}\) to the instrument.

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120 V 100 92 www Interface circuit 50 mA 470 92 www 1 W