Which will do more damage—plugging a 110-V toaster into a 220-V circuit or plugging a 220-V toaster into a 110-V circuit? Explain.
To explain: Toaster with higher voltage specification damage more or the toaster with lower voltage specification.
Explanation of Solution
The designed filament resistance is such that it work efficiently only if the specified voltage is supplied. To prevent from damage the toaster designed to a current limit its filament can sustain.
From the Ohm’s law, increasing the voltage supply will increase the current flow. Plugging in 110 V toaster into 220 V, forces the current to flow more that its designed limit. The filament of toaster would burnout.
Plugging in 110 V toaster into 220 V will do more damage.
Chapter 34 Solutions
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