# The number of turns in primary and secondary coils of a transformer is 50 and 200. If the current in the primary coil in 4A, then the current in the secondary coil is

$\begin {array} {1 1} (1)\;1A & \quad (2)\;2A \\ (3)\;4A & \quad (4)\;5A \end {array}$

(1) 1A