Answer:
1625
Explanation:
Ns/Np = Vs/Vp
Ns / 650 = 500/200
Ns = 2.5 x 650
Ns = 1625
Yes
Originally : Level = log I / I0
Currently: Level = 10 log I / I0
Level = 10 log 600 = 10 * 2.78 = 27.8
Note the term 1 bel = 10 decibels