Question

The electric field strength of a parallel-plate capacitor depends on _______

1. the charge
2. the surface area of the electrodes
3. the shape of the electrodes
4. the spacing between the electrodes

Answer 1

The electric field strength of a parallel-plate capacitor depends on the charge and the spacing between the electrodes.

Step-by-step explanation:

The electric field strength of a parallel-plate capacitor depends on the:

1. Charge: The magnitude of the field is directly proportional to the charge on the capacitor.
2. Spacing between the electrodes: The field is directly proportional to the distance between the capacitor plates.
3. Surface area of the electrodes: The field is not directly dependent on the surface area, but it affects the capacitance of the capacitor, which indirectly affects the field strength.

Therefore, the correct options are 1. the charge and 4. the spacing between the electrodes.