Step-up transformers are used for
[amp_mcq option1=”increasing electrical power” option2=”decreasing electrical power” option3=”decreasing voltage” option4=”increasing voltage” correct=”option4″]
This question was previously asked in
UPSC NDA-2 – 2017
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Step-up transformers are specifically designed to increase (step up) the voltage from the primary coil to the secondary coil. They have more turns in the secondary coil than in the primary coil. Conversely, a step-down transformer decreases the voltage. Transformers are highly efficient, but they do not increase or decrease the total electrical power (ideally, power input equals power output, although small losses occur in real transformers).
– Step-up transformers increase voltage.
– They work based on electromagnetic induction.
– They are used in AC circuits.