Podcast
Questions and Answers
Which of the following is a necessary component of every electric circuit?
Which of the following is a necessary component of every electric circuit?
- Energy source (correct)
- Magnetic field
- Gravitational force
- Capacitor
What type of material permits electrons to flow freely from particle to particle?
What type of material permits electrons to flow freely from particle to particle?
- Semiconductors
- Superconductors
- Insulators
- Conductors (correct)
What is the potential difference between two points in an electric field?
What is the potential difference between two points in an electric field?
- The resistance between the points
- The amount of charge at one point
- The current flowing between the points
- The work needed to transfer a charge of 1 C between the points (correct)
Which type of electric circuit has only one path for current to flow?
Which type of electric circuit has only one path for current to flow?
What happens to excess charge transferred to an insulator?
What happens to excess charge transferred to an insulator?
What is the unit of potential difference?
What is the unit of potential difference?
What does electric current measure?
What does electric current measure?
How many electrons pass any point in a wire carrying a current of 1 A each second?
How many electrons pass any point in a wire carrying a current of 1 A each second?
What is the resistance of a 120-V electric heater drawing a current of 25 A?
What is the resistance of a 120-V electric heater drawing a current of 25 A?
What must be the minimum rating of the fuse in the electric circuit to which a 120-V toaster with a resistance of 12 Ω is connected?
What must be the minimum rating of the fuse in the electric circuit to which a 120-V toaster with a resistance of 12 Ω is connected?
What is the magnitude of the electric field at a point located at (4, -2) m?
What is the magnitude of the electric field at a point located at (4, -2) m?
If the charge q = +1.6x10^-19 C moves in an electric field of 1.0 kV/m, what is the force experienced by the charge?
If the charge q = +1.6x10^-19 C moves in an electric field of 1.0 kV/m, what is the force experienced by the charge?
A charge of -4 nC is located at (0,1) m. What is the magnitude of the electric field at this point?
A charge of -4 nC is located at (0,1) m. What is the magnitude of the electric field at this point?
An electron is present in an electric field of 10,000 N/C. What is the force on the electron?
An electron is present in an electric field of 10,000 N/C. What is the force on the electron?
Two point charges are located in the y-axis; q1 = 5nC at y = -4 and q2 = -10nC at y = 2. What is the magnitude and direction of the electric field at y = -2?
Two point charges are located in the y-axis; q1 = 5nC at y = -4 and q2 = -10nC at y = 2. What is the magnitude and direction of the electric field at y = -2?
What is the definition of an electric field?
What is the definition of an electric field?
In which direction do the electric field lines point?
In which direction do the electric field lines point?
How is the magnitude of the electric field calculated?
How is the magnitude of the electric field calculated?
What does it mean when electric field lines are drawn close together?
What does it mean when electric field lines are drawn close together?
What is the unit of electric field?
What is the unit of electric field?
