Question

What is the relation between the E of the E-factor relaxation and the relaxation factor λ?

(a) E=(frac{1}{1-lambda})

(b) E=(frac{lambda}{1-lambda})

(c) E=(frac{lambda}{1+lambda})

(d) E=(frac{1}{1+lambda})

Answer 1

Right choice is (a) E=(frac{1}{1-lambda})

To explain: The relaxation factor is expressed in terms of E factors in the E-factor relaxation. In general, the E factors range from 4 to 10. This range corresponds to the under-relaxation factors of range 0.75 and 0.9.