SELECT THE ALWAYS TRUE STATEMENTS FROM THE FOLLOWLING LIST Dielectric materials:
ID: 1375071 • Letter: S
Question
SELECT THE ALWAYS TRUE STATEMENTS FROM THE FOLLOWLING LIST
Dielectric materials: Three reasons for adding a dielectric material between the plates of a capacitor are
(1) Dielectrics do not break down (allowing electric charge to flow) as readily as air, so a higher voltage can be applied without charge passing across the gap. (2) A dielectric allows the plates to be placed closer together without touching thus allowing an increased capacitance because the plate separation is less. (3) If a dielectric fills the space between the two conductors, it increases the capacitance
Electric potential: Two identical aluminum objects are insulated from their surroundings. If object A has a net positive charge and object B is grounded, then object B is at a lower potential.
Parallel plate capacitor: The plates of a parallel-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. During this process, the amount of charge on the plates must decrease.
Equipotential surface: along this surface charges have a net electrostatic force.
Electron-volt: unit of force.
SELECT THE ALWAYS TRUE STATEMENTS FROM THE FOLLOWLING LIST
Dielectric materials: Three reasons for adding a dielectric material between the plates of a capacitor are
(1) Dielectrics do not break down (allowing electric charge to flow) as readily as air, so a higher voltage can be applied without charge passing across the gap. (2) A dielectric allows the plates to be placed closer together without touching thus allowing an increased capacitance because the plate separation is less. (3) If a dielectric fills the space between the two conductors, it increases the capacitance
Electric potential: Two identical aluminum objects are insulated from their surroundings. If object A has a net positive charge and object B is grounded, then object B is at a lower potential.
Parallel plate capacitor: The plates of a parallel-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. During this process, the amount of charge on the plates must decrease.
Equipotential surface: along this surface charges have a net electrostatic force.
Electron-volt: unit of force.
Explanation / Answer
These are true:
1. (2) A dielectric allows the plates to be placed closer together...
2. (3) If a dielectric fills the space between two conductors, it increases the capacitance.
3. Electric potential. Two identical aluminum objects...
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