In a transformer, number of turns in the primary coil are 140 and that in the secondary coil are 280. If current in primary coil is 4 A, then that in the secondary coil is (1) 4 A (2) 2 A (3) 6 A (4) 10 A
In a transformer, number of turns in the primary coil are 140 and that in the secondary coil are 280. If current in primary coil is 4 A, then that in the secondary coil is\\
(1) 4 A\\
(2) 2 A\\
(3) 6 A\\
(4) 10 A