True or False? A dielectric slab is slowly inserted between the plates of aparal
ID: 1668947 • Letter: T
Question
True or False?A dielectric slab is slowly inserted between the plates of aparallel-plate capacitor, while the potential difference betweenthe plates is held constant by a battery. As the slab is beinginserted, the capacitance, the potential difference between theplates, and the charge on the positive plate all increase.
A parallel-plate capacitor, with air dielectric, is charged by abattery, after which the battery is disconnected. A slab of glassdielectric is then slowly inserted between the plates. As it isbeing inserted, electric force attracts the glass into the spacebetween the capacitor.
Two capacitors are identical except that one is filled with air andthe other with oil. Both capacitors carry the same charge. Theratio of the electric fieldsEair/Eoilis zero.
A parallel-plate capacitor, with air dielectric, is charged by abattery, after which the battery is disconnected. A slab of glassdielectric is then slowly inserted between the plates. As it isbeing inserted, the magnitude of the charge on each plateincreases.
A parallel-plate capacitor, with air dielectric, is charged by abattery, after which the battery is disconnected. A slab of glassdielectric is then slowly inserted between the plates. As it isbeing inserted, the potential difference between the platesdecreases.
Explanation / Answer
A dielectric slab is slowly inserted between the plates of aparallel-plate capacitor, while the potential difference betweenthe plates is held constant by a battery. As the slab is beinginserted, the capacitance, the potential difference between theplates, and the charge on the positive plate all increase False. Because the capacitance and thecharge on the plate increase but the potential difference betweenthe plates remains the same A parallel-plate capacitor, with air dielectric, is charged by abattery, after which the battery is disconnected. A slab of glassdielectric is then slowly inserted between the plates. As it isbeing inserted, electric force attracts the glass into the spacebetween the capacitor. True Two capacitors are identical except that one is filled withair and the other with oil. Both capacitors carry the same charge.The ratio of the electric fieldsEair/Eoilis zero. False.
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