Computer · Electronic Devices and Circuits
What value of a series resistor is required to limit the current through an LED to 20 mA with a forward voltage drop of 2.0 V, when connected to a 10 V supply?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1400 Ω✓
- 2800 Ω
- 3200 Ω
- 4600 Ω
Correct answer
400 Ω
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