quizizz EC

Which are the main part of basic transformer?

• Enclosure

• Primary Winding

• Core

• Secondary Winding

• All is correct

Which one is the function of CORE?

• Provides a path for the magnetix lines of flux

• Protect components from dirt, moisture and mechanical damage

• Receives energy from the AC source

• A central and often foundational part usually distinct from the enveloping part by a difference in nature.

• All is correct

How many categories of core material?

• 2

• 5

• 4

• 3

Which are two major configurations of iron core transformer?

• Core type

• Wind type

• Shell type

• Geo type

• Wave type

What is primary winding?

• the coil of wire that receives electrical power from the source. It is connected to the input voltage source.

• another coil of wire, usually wound around the same iron core as the primary winding but electrically isolated from it.

• winding that first

• winding that second

Secondary winding is...

• the coil of wire that receives electrical power from the source. It is connected to the input voltage source.

• another coil of wire, usually wound around the same iron core as the primary winding but electrically isolated from it.

• winding that first

• winding that second

Defined turns ratio, (n)

• the sum of the number of turns in the primary winding (NP) to the number of turns in the secondary winding (NS)

• the ratio of the number of turns in the primary winding (NP) to the number of turns in the secondary winding (NS)

• the ratio of the number of turns in the primary winding (NS) to the number of turns in the secondary winding (NP)

• the sum of the number of turns in the primary winding (NS) to the number of turns in the secondary winding (NP)

What is the formula for ratio, (n)?

• VP/NS

• NP/NS

• Log N/Log 2

• NS/NP

• VP/VS

What is the true statement for this?

• The primary and secondary voltages are in phase when the windings are in the same effective direction around the magnetic path.

• The primary and secondary voltages are 180° out of phase when the windings are in the opposite direction.

Phase dots indicate relative polarities of primary and secondary voltages.
Which one is the voltages OUT of phase?

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