1.

In transformer terminology, the ratio 20:1 indicates that

A. there are 20 turns on primary one turn on secondary
B. secondary voltage is 1/20th of the primary
C. primary current is 20 times greater than the secondary current
D. for every 20 turns on primary, there is one turn on secondary
Answer» C. primary current is 20 times greater than the secondary current


Discussion

No Comment Found