Podcast
Questions and Answers
What is the relationship between voltage and electrical potential energy?
What is the relationship between voltage and electrical potential energy?
- Change in potential energy is equal to the charge multiplied by the change in voltage (correct)
- Voltage is the same as electrical potential energy
- Change in voltage is equal to the change in potential energy divided by the charge
- Voltage and electrical potential energy are not related
Why can't a motorcycle battery be used in place of a car battery, even if they have the same voltage?
Why can't a motorcycle battery be used in place of a car battery, even if they have the same voltage?
- The motorcycle battery stores more energy than the car battery
- The motorcycle battery has a different chemical composition
- The car battery can move charges better than the motorcycle battery (correct)
- The car battery has a higher voltage than the motorcycle battery
What is the purpose of the negative terminal in a battery?
What is the purpose of the negative terminal in a battery?
- To have an excess of negative charge, which will flow to the positive terminal (correct)
- To attract positive charges
- To balance the charge of the positive terminal
- To repel negative charges
What is the difference between voltage and energy?
What is the difference between voltage and energy?
What is the purpose of the uniform electric field produced by placing a voltage across two parallel metal plates?
What is the purpose of the uniform electric field produced by placing a voltage across two parallel metal plates?
What is the direction of the flow of charges inside a battery?
What is the direction of the flow of charges inside a battery?
What is a capacitor?
What is a capacitor?
What is the purpose of adding a dielectric material between the plates of a capacitor?
What is the purpose of adding a dielectric material between the plates of a capacitor?
What is the relationship between the dielectric constant $k$ and the capacitance of a capacitor?
What is the relationship between the dielectric constant $k$ and the capacitance of a capacitor?
What is the purpose of a series circuit in a capacitor-based device?
What is the purpose of a series circuit in a capacitor-based device?
What is the unit of potential energy, as denoted by $PE$, in the equation $V = PE/q$?
What is the unit of potential energy, as denoted by $PE$, in the equation $V = PE/q$?
What is the primary function of a defibrillator device?
What is the primary function of a defibrillator device?
