A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have?
Options
A. 310 Ohm
B. 400 Ohm
C. 410 Ohm
D. 550 Ohm
E. None of the above
Correct Answer
410 Ohm
More questions
1. A workstation has just been installed on an Ethernet LAN, but cannot communicate with the network. What should you check first?
Options
A. reinstall the network protocols
B. reinstall the network interface card driver
C. verify the ip configuration on the workstation
D. verify the link status on the computer's network card