simulation of LED based circuit using multisim

1.Resistance R1-100 ohms 2.Resistance R2-1000 ohms 3.LED 4.Single Pole Single Throw switch Working:The Led is forward biased.Its positive terminal is connected to the cathode of the DC source and negative terminal to the cathode of the DC source Result:When the switch is closed the current flows through the circuit which makes the forward biased LED glow.