I want to hook up 3 LEDs to a 9 Volt battery in a parallel curcuit. (The LEDs have 3.4 voltage drop and 20mA.)
I did a calculation online for resistors, and it says I need a minimum of 100 Ohm and 1/2 Watts, but I only have resisters at various Ohms at 1/4 Watts.
My question is, can I combine two of these 1/4 Watt resistors to equal out to a 1/2 Watt? (For example, two 220 Ohm 1/4 Watt resistors in place of one 100 Ohm 1/2 Watt resistor?)
I did a calculation online for resistors, and it says I need a minimum of 100 Ohm and 1/2 Watts, but I only have resisters at various Ohms at 1/4 Watts.
My question is, can I combine two of these 1/4 Watt resistors to equal out to a 1/2 Watt? (For example, two 220 Ohm 1/4 Watt resistors in place of one 100 Ohm 1/2 Watt resistor?)