a) Your computer has a built-in \"surge protector.\" A surge is a sudden increas

Question

a) Your computer has a built-in "surge protector." A surge is a sudden increase in voltage on the power line. This causes a rapid "current spike" that can destroy sensitive electronic components. After the AC electricity is converted to DC in your computer's power supply, the current going to the computer processor must pass through a coil of wire wrapped around an iron core. Explain how this coil works as a surge suppressor.

b) An inductor is plugged into a 120V/60 Hz wall outlet in the US. Would the peak current be larger, smaller, or unchanged if this inducto were plugged into a wall outlet in a country where the voltage is 120V at 50 Hz? Explain.

Explanation / Answer

peak current is based on v=IR and independent on the Hz rating of the outlet.

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