posted by .

Hi can someone please explain to me how to get the answers to the following questions. It would be greatly appreciated
A pair of horizontal parallel plates are placed a small distance, 4.00 mm, apart in air. Each plate is rectangular with a width of 20.0 cm, and length of 37.0 cm. The potential on the upper plate relative to the lower plate is 1.07 ¡Ñ 103 V.
a)What is the magnitude of the electric field between the plates?
b)A tiny drop of oil with an excess charge of ¡V1.31 ¡Ñ 10¡V17 C and mass of 4.00 ¡Ñ 10−6 kg is placed just above the lower plate. Calculate the magnitude of the electrical force it experiences.
c)Calculate the number of excess electrons on the oil drop.
d)The oil-drop is then released. What would be the kinetic energy of the drop when it arrived just below the upper plate, assuming that you were able to ignore non-electrical effects such as gravity?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A paralle plate air capacitor has a capacitance of 500.0 pF and a charge of magnitude 0.200 uC on each plate. The plates are 0.6 mm apart. (a) What is the potenetial difference between the plates?
  2. physics

    Two parallel plates, separated by 10 mm, are charged to a potential difference of 50 V (that is, one plate is 0 V and the other plate is 50 V). Which of the following statements are true?
  3. Physics

    A parallel-plate capacitor is constructed from two circular metal plates or radius R. The plates are separated by a distance of 1.2mm. 1. What radius must the plates have if the capacitance of this capacitor is 1.1 uF?
  4. Physics

    A parallel plate air capacitor of capacitance 245pF has a charge of magnitude 0.148ìC on each plate. The plates are 0.328mm apart. (a) What is the potential difference between the plates?
  5. Physics

    A parallel-plate capacitor is designed so that the plates can be pulled apart. The capacitor is initially charged to a potential difference of 80 Volts when the plates are 1.0 mm apart. The plates are insulated so that the charge cannot …
  6. Physics

    Two parallel plates are 4.85 cm apart. The bottom plate is charged positively and the top plate is charged negatively, producing a uniform electric field of 5.51 x 104 N/C in the region between the plates. What is the time required …
  7. physics

    An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. If a 19.2-V potential difference is applied to these plates, calculate the following: (a) the electric field …
  8. College Physics 2

    A parallel-plate air capacitor is made from two plates 0.250 m square, spaced 0.70 cm apart. It is connected to a 140 V battery. a) What is the capacitance?
  9. physics

    Calculate the acceleration of the electrons enter the plates.Which are two parallel metal plates 12 mm apart, An electric field is produced between the plates, with the top plate held at a potential of 120 V and the lower plate earthed.
  10. physics

    A capacitor has circular plates of radius r=12cm that are a distance d=0.1cm apart. The capacitor is hooked up to a 12V battery. If the plates are pulled apart so that they are now a distance d=0.2cm apart, what magnitude of charge …

More Similar Questions