Transformer

Transformer can convert and produce power.

• True

• False

A transformer essentially consists of non-contacting coils of wire mounted on a core.

• True

• False

What is the function of the transformer core in a transformer?

• To provide electrical insulation

• To connect the primary and secondary windings

• To regulate the output voltage

• To provide a path for magnetic flux

What is the main purpose of the insulation used in the windings of a transformer?

• To prevent electrical shock to humans

• To increase the mechanical strength of the windings

• To regulate the voltage output of the transformer

• To prevent electrical current from leaking between the windings

What does prefix "auto" in autotransformer mean?

• a car

• single coil acting alone (Greek for "self")

• some automatic system or mechanism

Step-up transformer converts:

• Low voltage and high current to high voltage and low current

• High voltage and low current to low voltage and high current

• Low voltage and high current to low voltage and low current

• High voltage and high current to high voltage and low current

How many transformers are used to transmit electricity from the power plant to our households?

• 3

• 2

• 4

• 5

Are transformers important in our everyday life?

• Yes

• No