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A transformer is an electrical device that takes electricity of one voltage and changes it into another voltage. You'll see transformers at the top of utility poles and even changing the voltage in a toy train set.

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In electronics, a logic gate is an idealized or physical device implementing a Boolean function; that is, it performs a logical operation on one or more logical inputs, and produces a single logical output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device (see Ideal and real op-amps for comparison).

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FOR THE BODY OF THE ROBOT
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Working Model of Transformer

INTRODUCTION

The transformer is a device used for converting a low alternating voltage to a high alternating voltage or a highalternating voltage into a low alternating voltage

PRINCIPLE

It is based on the principle of mutual induction that is if a varying current is set-up in a circuit induced e.m.f. isproduced in the neighboring circuit. The varying current in acircuit produce varying magnetic flux which induces e.m.f. inthe neighboring circuit

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