Podcast
Questions and Answers
What property of a substance is defined as the ability to restrict the flow of electricity?
What property of a substance is defined as the ability to restrict the flow of electricity?
- Resistance (correct)
- Insulation
- Friction
- Conductivity
Which of the following is NOT a good conductor of electricity?
Which of the following is NOT a good conductor of electricity?
- Copper
- Bakelite (correct)
- Aluminium
- Silver
What causes metals like silver, copper, and aluminium to be good conductors of electricity?
What causes metals like silver, copper, and aluminium to be good conductors of electricity?
- Presence of acids in the metals
- Lack of electrons in the metals
- Presence of free or loosely-attached electrons (correct)
- High temperature of the metals
Substances that offer greater difficulty to the flow of electrons are known as:
Substances that offer greater difficulty to the flow of electrons are known as:
Which of the following is a good insulator according to the text?
Which of the following is a good insulator according to the text?
What is the effect of freely moving electrons in a conductor when an electric potential difference is applied?
What is the effect of freely moving electrons in a conductor when an electric potential difference is applied?
Which substance is mentioned as relatively poor conductors of electricity?
Which substance is mentioned as relatively poor conductors of electricity?
Which class of substances are good conductors of electricity?
Which class of substances are good conductors of electricity?
Why do silver, copper, and aluminium act as very good conductors of electricity?
Why do silver, copper, and aluminium act as very good conductors of electricity?
What happens to the vagrant electrons in a conductor when an electric potential difference is applied?
What happens to the vagrant electrons in a conductor when an electric potential difference is applied?
What is the main result of the collision between flowing electrons and atoms/electrons in a conductor?
What is the main result of the collision between flowing electrons and atoms/electrons in a conductor?
Which of the following substances is NOT a good conductor of electricity?
Which of the following substances is NOT a good conductor of electricity?
Among the following, which can be classified as good insulators?
Among the following, which can be classified as good insulators?
What is the property that substances like bakelite, mica, glass, and rubber exhibit in terms of conducting electricity?
What is the property that substances like bakelite, mica, glass, and rubber exhibit in terms of conducting electricity?
