Capacitors, Current Types, and Tubes

Capacitors, Current Types, and Tubes

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers the basics of electrical components such as resistors, capacitors, inductors, and tubes. It explains the differences between AC and DC currents and delves into the historical 'War of Currents' between Edison and Tesla. The tutorial also introduces the concept of amplification using tubes and provides practical examples of early electrical components.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of a capacitor?

To convert AC to DC

To store electrical charge

To resist electrical current

To amplify signals

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of capacitor is made using aluminum foil and fish oil?

Ceramic capacitor

Electrolytic capacitor

Film capacitor

Paper capacitor

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main difference between AC and DC current?

AC flows in one direction, DC flows back and forth

DC flows in one direction, AC flows back and forth

AC is used in batteries, DC is used in power lines

DC is safer than AC

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of an inductor in an electrical circuit?

To amplify signals

To convert AC to DC

To resist changes in current

To store electrical charge

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who was hired by Edison to help develop DC systems?

Nikola Tesla

George Westinghouse

Thomas Edison

Lee De Forest

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the purpose of the electric chair invented by Edison?

To amplify electrical signals

To convert AC to DC

To demonstrate the danger of AC

To demonstrate the safety of DC

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the Edison effect?

The storage of electrical charge

The amplification of electrical signals

The emission of electrons from a heated filament

The conversion of AC to DC

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