Q. A 12V 60W lamp is connected to the secondary of a step-down transformer, whose primary is connected to ac mains of 220 V. Assuming the transformer to be ideal, what is the current in the primary winding?
(1) 0.27 A
(2) 2.7 A
(3) 3.7 A
(4) 0.37 A (NEET-2023)
Aditya Bhatt Answered question 8 February 2024