A step-down transformer reduces the voltage of the transmission line from 2200 V to 220 V. The power delivered by it is 8800 W and its efficiency is 88%. The input current is
(a) 0.045 A
(b) 4.65 mA
(c) 0.45 A
(d) 4.65 A
Answer: (c) 0.45 A
A step-down transformer reduces the voltage of the transmission line from 2200 V to 220 V. The power delivered by it is 8800 W and its efficiency is 88%. The input current is
(a) 0.045 A
(b) 4.65 mA
(c) 0.45 A
(d) 4.65 A
Answer: (c) 0.45 A