ENGR 44 Shubo C Lab 2

The first 2 pictures are about testing the light works or not.

ideal circuit

After connecting the circuit, measuring the voltage and current.

Ideal circuit of measuring the current between LED2 and resistor.

Ideal circuit of measuring the current between LED1 and resistor.

Bonus question.

a. divide by supply current.

b. % Error

efficiency

best efficiency

Freemat

calculation of Freemat