The current in the primary coil of a transformer is 2.5A. If the coil has 50 turns and the secondary250 turns, calculate the current in the secondary coil. Neglect energy losses in the transformer
-
A.
0.2A -
B.
0.5A -
C.
2.5A -
D.
5A -
E.
12.5A
Correct Answer: Option B
Explanation
(frac{I_s}{I_p}=frac{n_p}{n_s}, I_s= frac{I_pn_p}{n_s}=frac{2.5times50}{250}Rightarrow0.5A)