A zener of breakdown voltage `V_(Z)=8V` and maximum zener current, `I_(ZM)=10mA` is subjected to an input voltage `V_(i)=10V` with series resistance `R=100Omega`. In the given circuit `R_(L)` represents the variable load resistance. The ratio of maximum and minimum value of `R_(L)` is ________

Answer

2

Explanation

`R_(L)=(8)/(10)=0.8`
`R_(max)=(8)/(20)`
`(8)/(10)xx(20)/(8)=2`