P4 Electric Circuits

Question 1

What symbol represents a cell in a circuit diagram?

Answer 1

A long line and a short line in series.

Question 2

True or False: A battery symbol consists of multiple cells.

Answer 2

True.

Question 3

What does the symbol for a resistor look like?

Answer 3

A zigzag line.

Question 4

Fill in the blank: The symbol for a switch is represented by a ______.

Answer 4

break in a line with a small circle.

Question 5

What does the symbol for a light bulb look like?

Answer 5

A circle with a cross inside.

Question 6

True or False: The symbol for an ammeter is a circle with the letter ‘A’ inside.

Answer 6

True.

Question 7

What does the symbol for a voltmeter look like?

Answer 7

A circle with the letter ‘V’ inside.

Question 8

What is the symbol for a fuse in a circuit diagram?

Answer 8

A rectangle with a line through it.

Question 9

Multiple Choice: What symbol represents a diode?

Answer 9

A triangle pointing to a line.

Question 10

What does the symbol for a variable resistor look like?

Answer 10

A zigzag line with an arrow.

Question 11

Fill in the blank: The symbol for a power source is a ______.

Answer 11

long line (positive) and short line (negative) in series.

Question 12

True or False: The symbol for a capacitor is two parallel lines.

Answer 12

True.

Question 13

What does the symbol for a junction in a circuit look like?

Answer 13

A dot where three lines meet.

Question 14

What is the symbol for a thermistor?

Answer 14

A resistor symbol with a line indicating temperature.

Question 15

Multiple Choice: Which symbol represents an LED?

Answer 15

A diode symbol with two arrows pointing away.

Question 16

What does the symbol for an inductor look like?

Answer 16

A series of loops or coils.

Question 17

True or False: A transformer is represented by two coils with a line connecting them.

Answer 17

True.

Question 18

Fill in the blank: The symbol for a battery has ______ cells.

Answer 18

two or more.

Question 19

What does the symbol for an earth connection look like?

Answer 19

Three horizontal lines stacked.

Question 20

What is the symbol for a relay?

Answer 20

A rectangle with a coil and contacts.

Question 21

Multiple Choice: Which of the following symbols represents a speaker?

Answer 21

A circle with sound waves emanating.

Question 22

What does the symbol for a potentiometer look like?

Answer 22

A resistor symbol with an arrow across it.

Question 23

True or False: An optical sensor is represented by a circle with light rays.

Question 24

What does the symbol for a microcontroller look like?

Answer 24

A rectangle with multiple pins.

Question 25

Fill in the blank: The symbol for a logic gate is typically a ______ shape.

Answer 25

specific geometric.

Question 26

What does the symbol for a battery charger look like?

Answer 26

A battery symbol with an arrow pointing to it.