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Luda [366]
2 years ago
11

HELP ASAP!! Ohms law homework

Computers and Technology
1 answer:
kvv77 [185]2 years ago
8 0

4a)

According to Ohm's law (Current) = (Voltage)/(Resistance)

Given the values: (Current) = 9V / 470 Ohm = 19.1 mA

The current through the LED is 19.1mA, or 0.019A

4b)

(max current) = (voltage)/(min resistance) =>

(min resistance) = (voltage)/(max current) = 6V / 0.05 A = 120 Ohm

The resistor must be at least 120 Ohm, otherwise the LED will fry.

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