Podcast
Questions and Answers
What carries the electric current in metals?
What carries the electric current in metals?
- Free electrons (correct)
- Positive metal ions
- Cations
- Anions
In an ionic solution, which particles are attracted to the cathode?
In an ionic solution, which particles are attracted to the cathode?
- Free electrons
- Cations (correct)
- Positive metal ions
- Anions
What is the direction of electron flow in metals compared to conventional current?
What is the direction of electron flow in metals compared to conventional current?
- No electron flow in metals
- Same as conventional current
- Electrons flow randomly in metals
- Opposite to conventional current (correct)
What property is conserved according to Kirchhoff’s first law?
What property is conserved according to Kirchhoff’s first law?
What does mean drift velocity represent in a material?
What does mean drift velocity represent in a material?
What property is represented by the number density, n, of a material?
What property is represented by the number density, n, of a material?
What is the SI base unit for electric current?
What is the SI base unit for electric current?
How is the net charge of a particle affected by removing electrons from it?
How is the net charge of a particle affected by removing electrons from it?
What is the charge of a proton in terms of the elementary charge, e?
What is the charge of a proton in terms of the elementary charge, e?
What does an ammeter measure in an electrical circuit?
What does an ammeter measure in an electrical circuit?
Which statement describes the relationship between like charges?
Which statement describes the relationship between like charges?
What defines one coulomb of charge?
What defines one coulomb of charge?