The configuration in which each LED receives operating current of 8 mA from power supply while the port lines sink the current on each port line is
A. common port configuration
B. common anode configuration
C. common cathode configuration
D. none of the mentioned
Answer:A
The configuration in which each LED receives operating current of 8 mA from power supply while the port lines sink the current on each port line is
A. common port configuration B. common anode configuration C. common cathode configuration D. none of the mentioned
Explanation: The common anode configuration is preferred to that of other configurations as in common anode configuration, each LED receives operating current of 8 mA from power supply while the port lines sink the current on each port line.