Transformer is currently connected with two live phases of three phase supply to 380V input. Which means your single phase voltage to neutral must be 220V. Single phase input of 220V should be connected L to 220V and N to 0V.

Therefore, if AC is the type of power delivered to your house and DC is the type of power you need to charge your phone, you are going to need an AC/DC power supply in order to convert the AC voltage coming in from the power grid to the DC voltage needed to charge your mobile phone’s battery. Understanding Alternating Current (AC)

Class 12 Physics Alternating Current Step down transformer 450+ Live tutors are available right now to answer your questions on this concept! Understand from a live tutor Question Easy Solving time: 2 mins A step down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp.

A step down transformer reduces 220v to 11v. The primary draws 5 A current and secondary supplies 90A. efficiency of the transformer will be A 4.4% B 20% C 33% D 90% Medium Solution Verified by Toppr Correct option is D) Solve any question of Alternating Current with:- Patterns of problems > Was this answer helpful? 0 0 Similar questions

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