In a step-down transformer, the input voltage is 22 kV and the output voltage is 550 V. The ratio of the number of turns in the secondary to that in the primary is-
A. 1 : 20
B. 20 : 1
C. 1 : 40
D. 40 : 1
Answer:C
In a step-down transformer, the input voltage is 22 kV and the output voltage is 550 V. The ratio of the number of turns in the secondary to that in the primary is-
A. 1 : 20 B. 20 : 1 C. 1 : 40 D. 40 : 1