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Basic Electrical Transformer - How its Works

Basic Electrical Transformer - How its Works

Assessment

Interactive Video

Engineering

5th Grade

Practice Problem

Easy

Created by

zafri shafi'i

Used 1+ times

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of an electrical transformer?

To change voltage levels of AC electricity.
To increase the frequency of electrical signals.
To store electrical energy for later use.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the video explain the function of the primary and secondary windings in a transformer?

The primary winding stores electrical energy for later use.
Both windings are used to convert AC to DC voltage.
The primary winding generates a magnetic field that induces voltage in the secondary winding.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between the primary coil and the secondary coil in a transformer?

The primary coil is for input voltage, while the secondary coil is for output voltage.
The primary coil is used for grounding, while the secondary coil is for insulation.
The primary coil generates electricity, while the secondary coil stores it.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the magnetic core in a transformer?

The magnetic core isolates the primary and secondary coils from each other.
The magnetic core acts as a heat sink to dissipate excess heat.
The magnetic core channels and enhances the magnetic field for efficient energy transfer.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a step-up transformer differ from a step-down transformer?

A step-up transformer converts AC to DC; a step-down transformer converts DC to AC.
A step-up transformer increases voltage; a step-down transformer decreases voltage.

A step-up transformer decreases voltage; a step-down transformer increases voltage

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