Question

The transformation ratio in the step-up transformer is

• A. 1
• B. Greater than one
• C. Less than one
• D. The ratio greater or less than one depends on the other factors

Answer 1

Answer: (B)

Greater than one

Answer 2

Transformation ratio $k = \frac{N_{s}}{N_{p}} = \frac{V_{s}}{V_{p}}$

For step-up transformers, $N_{s} > N_{p}\mspace{6mu} i.e.\mspace{6mu} V_{s} > V_{p},$

hence $k > 1.$