Physics · Electrostatics
A dielectric slab of thickness d is inserted into a parallel-plate capacitor. The negative plate is located at x = 0 and the positive plate is at x = 3d. The dielectric slab is placed symmetrically between the plates (from x = d to x = 2d). The capacitor is given a charge. As x goes from 0 to 3d, which of the following statement(s) is/are correct?
- 1The electric potential increases at first, then decreases, and then increases again.
- 2The electric potential increases continuously.✓
- 3The direction of the electric field reverses inside the dielectric.
- 4The magnitude of the electric field remains the same throughout.
Correct answer
The electric potential increases continuously.
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