Transformers

A transformer consists of

• Metal Core

• Metal core and coiled wire

• Metal core and polymer wire

• Polymer core and metal wire

Transformer is device that

• converts AC voltage to current

• converts electrical energy to kinetic energy

• converts AC voltage to a different level at the same amplitude

• converts AC voltage to a different level at the same frequency

This picture is an example of a ___________

• Step- Up Transformer

• Step- Down Transformer

• Motor

• Generator

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Select the facts about transformer.

• Will not work with DC and AC

• Will not work with DC

• AC will produce change in magnetic field

• AC will induce current

Tags

NGSS.HS-PS2-5

A __________ is an electrical device that converts AC electricity from one voltage level to another

• transformer

• primary coil

• secondary coil

• center tap

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A device that increases or decreases the voltage of alternating current

• magnet

•  magnetic pole

•  transformer

•  magnetic force

The transformer shown is what type?

• step-up

• step-down

• current transformer

• isolation transformer

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

The voltage in the ​ (a)   coil of a transformer induces a current in the ​​ (b)   coil.

• primary

• secondary

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A step-up transformer is a transformer that ​ (a)   voltage.

• increases

• decreases

For increasing the voltage ___________ is used.

• Step up transformer

• Step down transformer

• Current transformer