An electrical device has 50 turns in its primary coil&nbs...
An electrical device has 50 turns in its primary coil and 20 turns in the secondary coil. The device can be a\an?
step-up transformer
step-down transformer
d.c generator
a.c generator
Correct answer is B
In a step down transformer, there are more turns in the primary coil than in the secondary coil and more current flows in the secondary circuit than in the primary.