Transformers

Transformers

9th Grade

10 Qs

quiz-placeholder

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Transformers

Transformers

Assessment

Quiz

Physics

9th Grade

Practice Problem

Medium

NGSS
HS-PS3-3, HS-PS3-5, HS-PS2-5

+1

Standards-aligned

Created by

S Frans

Used 259+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The function of a transformer is to ...

raise and lower the apparent power levels

transfer DC voltage from the primary winding to the secondary winding

increase or decrease A.C voltage or A.C current levels

transform mechanical energy into electrical energy

Tags

NGSS.HS-PS3-3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A step up transformer has its primary winding to secondary winding ratio

Greater than 1

Equal to 1

Less than 1

Unknown

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Primary winding of a transformer is determined by ...

which winding is nearer to the load

which winding is connected to the source

which winding has more turns

which side has the highest voltage

Tags

NGSS.HS-PS3-5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Choose the correct statement:

The ratio of the secondary voltage to the primary voltage is equal to the ratio of the primary turn to the secondary turn

The ratio of the primary current to the secondary current is equal to the ratio of the primary voltage to the secondary voltage

The ratio of the primary apparent power to the secondary apparent power is equal to the ration of the primary voltage to the secondary voltage

The ratio of the secondary current to the primary current is equal to the ratio of the primary turn to the secondary turn

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Assume primary has 240 turns and secondary has 60 turns. Primary is connected with 120V AC power supply. What is the voltage on the secondary?

30 V

0.333 V

2 V

120V

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Ratio of voltages is equal to ratio of

iron sheets in core
coil
number of turns in coil
all of above

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

This picture is an example of a ___________

Step- Up Transformer
Step- Down Transformer
Motor
Generator

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

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