![A light emitting diode (LED) has a voltage drop of 2V across it and passes a current of 10 mA. When it operates with a 6V battery through a limiting resistor R. A light emitting diode (LED) has a voltage drop of 2V across it and passes a current of 10 mA. When it operates with a 6V battery through a limiting resistor R.](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/643094316_web.png)
A light emitting diode (LED) has a voltage drop of 2V across it and passes a current of 10 mA. When it operates with a 6V battery through a limiting resistor R.
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Same LED, different voltage drops with different supply voltages - Electrical Engineering Stack Exchange
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voltage - Easy way to figure out a LED's Vf in order to pick an appropriate resistor - Electrical Engineering Stack Exchange
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led - Calculating forward voltage for a string of fairy lights: multimeter shows "1" - Electrical Engineering Stack Exchange
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