What is the main difference between alternating current (AC) and direct current (DC)?

Understanding Basic Circuit Components

Interactive Video
•
Physics, Science, Other
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
AC flows in one direction, while DC reverses direction.
Both AC and DC reverse direction.
Both AC and DC flow in one direction.
AC reverses direction, while DC flows in one direction.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a series circuit, what remains constant across all loads?
Voltage
Current
Resistance
Power
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a resistor in a circuit?
To convert electrical energy into light
To add resistance and reduce current flow
To amplify electrical signals
To store electrical energy
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is a diode represented in a schematic diagram?
A circle with a plus sign
A zigzag line
A rectangle with two lines
A line with a triangle pointing at it
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of a transistor in a circuit?
To store electrical energy
To add resistance
To amplify electrical signals
To convert electrical energy into light
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a potentiometer do in a circuit?
Converts electrical energy into light
Stores electrical energy
Amplifies electrical signals
Changes resistance
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of an LED?
To emit light when electricity passes through
To store electrical energy
To add resistance
To amplify electrical signals
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