Transformers Y 11

Transformers Y 11

11th Grade

•

29 Qs

quiz-placeholder

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Transformers Y 11

Transformers Y 11

Assessment

Quiz

•

Physics

•

11th Grade

•

Practice Problem

•

Easy

Created by

RIDA ALAYASS

Used 5+ times

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29 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Primary Coil of a transformer is determined by _________.

which coil has more turns

which coil is nearer to the load

which coil is connected to the source

which side has the highest voltage

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of transformer is used to increase the voltage from power stations.

Step-down transformer

Step-up transformer

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why transformers work with A.C. current but not D.C.

A.C current produces changing magnetic field.

D.C current produces changing magnetic field.

D.C current is weak

A.C current is powerful

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following does not change in a transformer?

Voltage

Current

Power

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

This picture is an example of a ________________.

Motor

Generator

Step-up transformer

Step-down transformer

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ratio of voltages is equal to ratio of _______________________.

number of iron sheets in core

number of coil

number of turns in coil

number of electromagnetic

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A transformer has 100 turns in the primary coil and 25 turns in the secondary coil. When a 120 V is applied to the primary coil, what is the voltage in the secondary coil?

480V

30V

20V

450V

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