   Chapter 16, Problem 34P

Chapter
Section
Textbook Problem

A 1-megabit computer memory chip contains many 60.0 × 10−15-F capacitors. Each capacitor has a plate area of 21.0 × 10−12 m2. Determine the plate separation of such a capacitor. (Assume a parallel-plate configuration.) The diameter of an atom is on the order of 10−10 m = 1 Å. Express the plate separation in angstroms.

To determine
The separation between the plates.

Explanation

Given info: The capacitance is 60.0×1015F . The area of the plate is 21.0×1012m2 .

Explanation:

Formula to calculate the separation between the plates is,

d=ε0AC

• ε0 is the permittivity of free space.
• A is the area of plate.
• C is the capacitance.

Substitute 21.0×1012m2 for A, 60.0×1015F for C and 8.85×1012 C2/Nm2 for ε0

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