Objective: Measure the electric field in a plate capacitor using the electric field meter
The electric field meter can be used to measure the electric field within a plate capacitor directly. In this experiment a rotating sectored disc interrupts the electrostatic flux falling on an induction plate, which forms part of a capacitor plate. The voltage pulses that are thereby generated are amplified to give an output voltage, which is then rectified to give a DC voltage that is proportional to the electric field E acting on the induction plate.
![实验：平行板电容器中的电场
(115伏, 50/60赫), 8000601 [UE3010700-115], Electrostatics](/imagelibrary/UE3010700-115/UE3010700-115_01_实验-平行板电容器中的电场-115伏-5060赫.jpg)
![实验：平行板电容器中的电场
(115伏, 50/60赫), 8000601 [UE3010700-115], Electrostatics](/thumblibrary/UE3010700-115/UE3010700-115_01_1200_1200_实验-平行板电容器中的电场-115伏-5060赫.jpg)
