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 transformer, $N _{ s }> N _{ P }$ i.e., $V _{ s } > V _{ P }$ Hence, $K >I$