raredarkicyfox
Answered

Discover a wealth of knowledge at Westonci.ca, where experts provide answers to your most pressing questions. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

The voltage drop across an LED is 2 Volts. It is connected to a 5 volt power supply with a resistor, as shown. What resistor value should be used to set the LED current to 4 mA?

The Voltage Drop Across An LED Is 2 Volts It Is Connected To A 5 Volt Power Supply With A Resistor As Shown What Resistor Value Should Be Used To Set The LED Cu class=

Sagot :

Answer:

Explanation:

The voltage drop across an LED is 2 Volts. It is connected to a 5 volt power supply

so voltage at resistor = 5-2 = 3V

by ohms' law, V=IR n current at 4mA or 0.004A

R = 3/0.004 = 750 ohms

We appreciate your time. Please come back anytime for the latest information and answers to your questions. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.