JEE Main 2024 Physics question

PhysicsAlternating CurrentJEE Main 2024

A transformer has an efficiency of 80% and works at 10 V and 4 kW. If the secondary voltage is 240 V, then the current in the secondary coil is:

Answer: (C)

Solution

Output power = 0.8 × 4000 = 3200 W; I = 3200/240 = 13.33 A.

Question ID VK-011146