Question

TOPIC: A step up transformer increases voltage (energy per unit charge). Does this mean we can get "free" energy using step-up transformers? Explain your answer.

Answer 1

No, we cannot get free energy using Step Up Transformers. Electrical transformers are used to transmit electrical energy from one place to another without changing the electrical power to be transmitted.i.e., P=V*I, the product of voltage and current is kept constant while transmitting electrical power. Hence if the Step Up Transformer increases the voltage then the current is reduced such that the product of voltage and current which is electrical power is constant. Hence we can say in nutshell that Transformers only Transforms the voltage level without affecting the electrical power to be transmitted

answered by: anonymous