The dielectric strength of rutile is 6.0 × 10^6 V/m, which corresponds to the maximum electric field that the dielectric can sustain before breakdown. What is the maximum charge that a 10?10-F capacitor with a 1.08-mm thickness of rutile can hold?
a. 1.7 nC
b. 0.65 µC
c. 0.32 mC
d. 6.5 C
e. 60 nC
b
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The main reason that gamma photons are more penetrating than either alpha particles or electrons is that
A. They are uncharged. B. They have no rest mass. C. They travel at speed c. D. They have more energy than electrons. E. They don’t ionize atoms as electrons do.
The exclusion principle
A. excludes electrons from atomic nuclei. B. means that no two electrons in an atom can have the same orbit. C. implies that in an atom no two electrons can have identical sets of quantum numbers. D. excludes protons from electron orbits.
A spherical, non-conducting shell of inner radius r1 = 10 cm and outer radius r2 = 15 cm carries a total charge Q = 15 ?C distributed uniformly throughout the volume of the shell
What is the magnitude of the electric field at a distance r = 12 cm from the center of the shell? (k = 1/4??0 = 8.99 × 109 N • m2/C2) A) 5.75 × 103 N/C B) zero C) 2.87 × 106 N/C D) 5.75 × 106 N/C E) 2.87 × 103 N/C
The velocity required to escape an astronomical body is known as the _______________
Fill in the blank(s) with correct word