A voltage of 240V is connected to the primary coil of a transformer, the rating of the primary turns to the secondary turns if the voltage available at the secondary coil is 15V
A
0.06
B
0.9
C
1.6
D
16
E
36
Verified Correct Answer: D.
Physical Principles & Numerical Solution
\(E_p\) = 240V, \(E_s\) = 15V
\(\frac{E_p}{E_s} = \frac{ N_p}{N_s}\)
\(\frac{240}{15} = \frac{ N_p}{N_s}\)
∴ \(\frac{ N_p}{N_s}\) = 16.
Source: Myschool Past Questions Archive (Record #43009)