Parallel-Plate Capacitor: Two parallel square metal plates, 8.4 cm on each side, are 2.5 mm apart and carry equal but opposite charge uniformly distributed over their facing surfaces. How much excess charge is there on each plate if the electric field between the plates has a magnitude of 2.0 × 106 N/C? (k = 1/4??0 = 8.99 × 109 N ? m2/C2)
Fill in the blank(s) with the appropriate word(s).
120 nC
You might also like to view...
____ occur when the Moon is first or third quarter
a. Neap tides b. Spring tides c. Total solar eclipses d. Annular eclipses e. A coppery red Moon will
Which of the following is one important reason why most large astronomical telescopes are reflecting telescopes rather than refracting telescopes?
A) Reflecting telescopes have their heaviest component (the mirror) at the bottom rather than the top of the telescope's tube. B) Reflecting telescopes take up less space than refracting telescopes. C) Reflecting telescopes are taller than refracting telescopes. D) For a mirror and lens of the same diameter, a mirror will collect more light.
The transverse nature of electromagnetic waves is apparent because
A) they are electric in nature. B) they are magnetic in nature. C) they can be polarized. D) they are electromagnetic in nature. E) None of the previous answers is correct.
A 3.0-kg block is on a frictionless horizontal surface. The block is at rest when, at t = 0, a force (magnitude P = 2.0 N) acting at an angle of 22° above the horizontal is applied to the block. At what rate is the force P doing work at t = 2.0 s?
a. 2.3 W b. 2.0 W c. 1.4 W d. 1.7 W e. 1.2 W