A parallel-plate capacitor consists of two parallel, square plates that have dimensions 1.0 cm by 1.0 cm. If the plates are separated by 1.0 mm,
and the space between them is filled with teflon, what is the capacitance of this capacitor? (The dielectric constant for teflon is 2.1, and ?0 = 8.85 × 10-12 C2/N • m2.)
A) 1.9 pF
B) 0.44 pF
C) 2.1 pF
D) 0.89 pF
A
You might also like to view...
The coefficients needed to balance the reaction Sb2S3 + HCl ? SbCl3 + H2S are, respectively,
a. 1, 2, 1, and 1. b. 2, 1, 3, and 1. c. 1, 2, 1, and 3. d. 1, 6, 2, and 3. e. 1, 1, 1, and 1.
Shapley found the Sun is located about half way out the disc from the center of the disk of the Galaxy
Indicate whether the statement is true or false
Which of the following best explains why a solar day is longer than a sidereal day?
A) Because Earth orbits the Sun at the same time it rotates, Earth must make slightly more than one full rotation between noon one day and noon the next. B) The precession of Earth's axis gradually changes the length of the solar day while leaving the length of the sidereal day alone. C) The fact that Earth's orbit is not a perfect circle causes the length of the solar day to vary during the year, so that it the solar day is sometimes longer and sometimes shorter than a sidereal day. D) The Sun rotates much as the Earth does, but more slowly, so that a solar day is longer than a sidereal day.
The object with a natural frequency of higher pitch is a
A) small bell. B) large bell. C) either of these D) none of the above