# How to wire circuit DC Motor with LED

I'm trying to learn a bit more about forward voltage and Ohm's law but I'm not sure how to wire this circuit.

I have:

• One 4.5 DC motor (Operating Volts: 1.5- 4.5V, Nominal Volts: 4.5V, Current (no load): 0.25A)

• Three 5mm LEDs (IF Typical (mA)20, IF Max Continuous (mA)50, VF Typical (V)2.1) -

• One 3 - 12VDC Switchmode Plugpack (Output voltage: 3, 4.5, 5, 6, 7.5, 9, Output current: 1000mA (max))

Do I use the power at 4.5V and run the motor and the LEDs in parallel?

Do I need resistors on the LEDs?

• IF Max Continuous (mA)50, LED current should be limited to this value. You may consider ignoring DC Motor until you are able to appreciate ohms law using LED, supply and resistors. Jul 13, 2015 at 3:40
• @Umar, but if I wire the motor and the LEDs in parallel, surely I don't need to cut the amperage down from 1A to 50mA? That was my question. Jul 13, 2015 at 3:51
• Yes and yes. One resistor for each LED : none for the motor.
– user16324
Jul 13, 2015 at 12:56