Answer / p. vara prasad

it's static device which step down/step up the voltage/current

Answer / manikandan p

It is an electronic device that supplies electric energy to an electrical load. The function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

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Hi any one of u send me supervisor trainee question paper to my mail id for written test prepration

0 Answers   Bhel,

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2 Answers   Siemens,

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resistance is the property of a material to resist the flow of current... now by ohm's law current is directly proportional to voltage. then why we transformer in small appplication... if we use resistance in daily life it will be more sufficent,cheaper,etc. than transformer

2 Answers  

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