Transformers are used to :
A. step up d.c. voltage
B. step up or step down a.c. voltage
C. converts a.c. into d.c.
D. converts d.c. in to a.c.
Answer:B
Transformers are used to :
A. step up d.c. voltage B. step up or step down a.c. voltage C. converts a.c. into d.c. D. converts d.c. in to a.c.