# Why does a transformer require alternating voltage quizlet?

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## Why does a transformer require alternating voltage?

Transformers work only with alternating current. That’s because it’s the change of the magnetic field created by the primary coil that induces voltage in the secondary coil. To create a changing magnetic field, the voltage applied to the primary coil must be constantly changing.

## Why does a transformer require AC quizlet?

Transformers are designed to use ac because that is the common power source for houses in the U.S. When the magnetic field changes in a coil of wire, voltage in each loop of the coil is induced. … it induces a magnetic field in the pipe that resists motion of the magnet. of air resistance.

## How does a transformer work quizlet?

How does a transformer work? The alternating voltage in the primary coil creates an alternating magnetic field in the iron core. This magnetic field cuts through the secondary coil which induces an alternating voltage in the secondary coil.

## What are the three ways in which voltage can be induced in a loop of wire?

This change may be produced in several ways; you can change the strength of the magnetic field, move the conductor in and out of the field, alter the distance between a magnet and the conductor, or change the area of a loop located in a stable magnetic field.

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## What is a AC transformer?

An AC transformer is an electrical device that is used to change the voltage in alternating current (AC) electrical circuits. One of the great advantages of AC over DC for electric-power distribution is that it is much easier to step voltage levels up and down with AC than with DC.

## What is the purpose of a transformer?

A transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage.

## When voltage is stepped up in a transformer current is stepped down quizlet?

Terms in this set (54)

When voltage is stepped up in a transformer, current is stepped down. But Ohm’s law tells us that greater voltage means greater current, not less current.

## Is it correct to say that a transformer boosts electric energy Defend your answer quizlet?

Is it correct to say that a transformer boosts electric energy? Defend your answer. No. Conservation of energy requires that the energy out is the same as energy in.

## How does a transformer change the voltage of an alternating current quizlet?

A transformer increases or decreases the voltage of alternating current. … An electric generator changes mechanical energy into electrical energy through electromagnetic induction while a transformer changes the voltage of alternating current through electromagnetic induction.

## When current is induced in the coil of a transformer What is it called quizlet?

Self-induction Glossary : The process that occurs in a single coil of wire when an alternating current flows through it; the flow of electrons in one direction produces a magnetic field that induces a second current to flow in the wire, but in the opposite direction.

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