Transformer Question A typical transformer uses induction to transform electrica

Question

Transformer Question

A typical transformer uses induction to transform electrical energy from a primary coil (input coil) to electrical energy in a secondary coil (output coil) via a changing magnetic field (or flux) through an iron core. The AC generator alternates the direction of the current at a given frequency, and the diagram shows the direction of magnetic field induced through the iron core at that given moment. When the poles of the AC generator switch, everything happens in the opposite directions. Note: you don't need to show your work, a. Is the transformer step-up or step-down? b. Using the given diagram, does the surge of conventional current primary travel from point A or B? c. Using the given diagram, does the induced conventional current in the secondary coil travel from point C or D?

Explanation / Answer

a) The transformer is step down transformet , in step down transofrmer the secondary voltage is less than its primary voltage. The number of turns in primary is greater than the number of turns of wire in secodary This kind of transformer “steps down” the voltage applied to it. As a step-down unit, the transformer converts high-voltage, low-current power into low-voltage, high-current power.

b ) the current in the primary coil is from B to A as per the direction of the magnetic field.

c) Induced conventional current direction is from C to D

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