Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

FSS - INTERGRATED SCIENCE > F2 - SEM1 - Circuit - 8.4 Resistance > Flashcards

F2 - SEM1 - Circuit - 8.4 Resistance Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

The electrical conductivity of a conductor is related to its ______________

A

Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Resistance shows the opposition of conductor to the flow of current. It’s unit is ___________

A

Ohm Ω

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A _________ is a circuit component with a certain value of resistance

A

Resistor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does Resistance show?

8.4 Resistance

A

The opposition of a conductor to the flow of current

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the unit of resistance?

8.4 Resistance

A

Ohm (Ω)

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which one conduct electricity better?

Low resistance
High resistance

8.4 Resistance

A

Low resistance

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the name of circuit component with a certain value of resistance?

8.4 Resistance

A

Resistor

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Draw component symbol

Resistor

8.4 Resistance

A

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In a simple circuit that only consists of a resistor connected to a cell, what happened to the current when resistance of the resistor increase?

8.4 Resistance

A

Current decrease

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the function of resistor?

8.4 Resistance

A

control the size of current

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the function of resistor in electrical appliance?

8.4 Resistance

A

Ensure the currents fit the needs of the circuits and are at safe value

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

True or False?

Good conductors have low resistance

8.4 Resistance

A

True

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

True or False?

A resistor is added to a circuit to increase the current flowing through it

8.4 Resistance

A

False
A resistor is added to decrease the current

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The resistance of a wire is depends on which 3 factors?

8.4 Resistance

A
  • Length of wire: longer the wire, higher the resistance
  • Thickness of wire: thinner the wire, higher the resistance
  • Material of the wire: less conductivity of the wire, higher the resistance

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is rheostat and its function?

8.4 Resistance

A

A resistor with an adjustable resistance
Use to adjust the current in a circuit

8.4 Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How is rheostat used in daily life?

A

Used in volume controls of hifi
Used in dimmer switches

FSS - INTERGRATED SCIENCE (35 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions