JEE Main 2026 Physics question
An electric power line having total resistance of , delivers 1 kW of power of 250 V. The percentage efficiency of transmission line is .
Answer: (A)
Solution
I=4A, , . Efficiency = .
An electric power line having total resistance of , delivers 1 kW of power of 250 V. The percentage efficiency of transmission line is .
I=4A, , . Efficiency = .