Energy Stored by Capacitor Video Lessons

Concept

# Problem: Two 3.00 cm × 3.00 cm plates that form a parallel-plate capacitor are charged to± 0.708 nCA)What is the electric field strength inside the capacitor if the spacing between the plates is 2.60 mm ?Express your answer with the appropriate units.B)What is the potential difference across the capacitor if the spacing between the plates is 2.60 mm ?Express your answer with the appropriate units.

###### FREE Expert Solution

A)

Electric field strength:

$\overline{){\mathbf{E}}{\mathbf{=}}\frac{\mathbf{Q}}{{\mathbf{\epsilon }}_{\mathbf{0}}\mathbf{A}}}$

A = L2 = (3.00 × 10-2)2 = 9.00 × 10-4 m2

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###### Problem Details

Two 3.00 cm × 3.00 cm plates that form a parallel-plate capacitor are charged to± 0.708 nC

A)

What is the electric field strength inside the capacitor if the spacing between the plates is 2.60 mm ?