The LED A typical partial datasheet for a visible red LED is shown in Figure 1. As the dat...

The LED A typical partial datasheet for a visible red LED is shown in Figure 1. As the datasheet shows, a forward current of 10 mA to 20 mA is used for the test data.

Figure 1

Determine the value of the resistor shown in Figure 2 for limiting the LED current to 20 mA and use the next higher standard value. Also specify the power rating of the limiting resistor.

Figure 2