Applications of a step up transformer:
For Transmission of electric power from power station to consumer,voltage is step up by using step up transformer.It minimizes the power loss in transmission line.
Applications of a step down transformer:
Step down transformer decrease the voltage to a safe value at the end of the transmission line where the consumer of electric power is located.A transformer can be used to step down the voltage from 240 v to 9 v for ringing the bell or operating a transistor radio.
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