Z
zalzon
Guest
Hi,
newbie question here that's got me confused. I'm trying to figure
out the resistance of an LED in this circuit.
I have a series circuit with a 1000 ohm resistor, a 3mm LED red bulb
and a 6200 ohm resistor in series. The input voltage is 5.02 volts
and the input current is 0.46 mA. Using this info, I have calculated
the LED resistance to be 3713 ohms.
Is it possible that the LED has such a high resistance?
On my multimeter, I read 0.46 volts across the 1000 ohm resistor and
2.91 volts across the 6200 ohm resistor. So i guess it matches up
with the calculated values approximately.
I can't seem to get the resistance of the LED using my multimeter for
some reason.
newbie question here that's got me confused. I'm trying to figure
out the resistance of an LED in this circuit.
I have a series circuit with a 1000 ohm resistor, a 3mm LED red bulb
and a 6200 ohm resistor in series. The input voltage is 5.02 volts
and the input current is 0.46 mA. Using this info, I have calculated
the LED resistance to be 3713 ohms.
Is it possible that the LED has such a high resistance?
On my multimeter, I read 0.46 volts across the 1000 ohm resistor and
2.91 volts across the 6200 ohm resistor. So i guess it matches up
with the calculated values approximately.
I can't seem to get the resistance of the LED using my multimeter for
some reason.