engineering recuitment ISRO Technician Electronic Mechanic Mock Test Electronic Mechanic Electronic Devices and Circuits LED Lights
The value of the current limiting resistor for a stack of 3 LEDs connected in series will be ________ if the LEDs are 3V, 3 mA and DC sources in 12 volts.
1
10 ohms
2
100 ohms
3
1 k ohms
4
10 k ohms