In the circuit shown below, the knee current of Ideal Zener diode is 10 mA. To maintain 5 volts across the load RL, the minimum value of RL in Ω’s and the minimum power rating of the Zener diode in mw, respectively are ________
1
125 and 125
2
125 and 250
3
250 and 125
4
250 and 250