Mathematics · Aptitude Calculations
If an Arduino Mega is powered through the Vin pin with a 12V supply and the onboard regulator drops 7V (from 12V to 5V), how much power (in watts) is dissipated as heat by the voltage regulator if the current drawn is 200mA?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.4 W
- 20.7 W
- 31.4 W✓
- 41.6 W
Correct answer
1.4 W
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