9C55 A
 FCC Commercial Element 9 – Subelement C  Page 4  Assuming that a light emitting diode has an internal resistance of 5 ohms, what value of series current limiting resistor should be used if the power supply voltage is 6 volts and the diode current is to be 0.05 Amperes at 1.6 Volts DC?
A. 83 Ohms.
B. 120 Ohms.
C. 88 Ohms.
D. 32 Ohms.
