Physics

posted by .

A capacitor has a capacitance of 55 pF. In the charging process electrons are removed from one ate and placed on the other plate. When the potential difference between the plates is 5.3 v how many electrons have been transferred?

  • Physics -

    C=q/U =Ne/U ,
    N=CU/e=55•10⁻ ¹²•5.3/1.6•10⁻ ¹⁹ =1.82•10⁹

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    Can please help me understand this question?
  2. Physics- Circuits

    A 100-microCoulomb parallel-plate capacitor is charged with a 24V power supply, then is disconnected from the power supply. a) The plates are moved 0.01 m apart to 0.05 m apart. What happens numerically, to the: i. Capacitance of the …
  3. Physics

    PLEASE HELP WITH AS MANY AS POSSIBLE... I AM TERRIBLY CONFUSED. 1. A charge moves a distance of 1.7 cm in the direction of a uniform electric field having a magnitude of 200 N/C. The electrical potential energy of the charge decreases …
  4. Physics

    The potential difference between the plates of a parallel plate capacitor is 35 V and the electric field between the plates has strength of 750 V/m. If the plate area is 4.0 × 10-2 m2, what is the capacitance of this capacitor?
  5. 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?
  6. 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?
  7. Physics

    A parallel-plate capacitor has a capacitance of 2.1 µF with air between the plates. The capacitor is connected to a 24 V battery and charged. The battery is then removed. When a dielectric is placed between the plates, a potential …
  8. physics

    You have a parallel plate capacitor (with air between its plates) which is attached to a voltage source until the capacitor is fully charged. (a)After detaching the capcitor from the voltage source, you move the capacitor's plates …
  9. Physics

    Two circular metal disc each of 3.00 cm diamter are 1.5 mm apart make a capacitor. A)What is the capacitance of this capacitor if it is in series to a 25 V battery?
  10. physics

    a parallel plate capacitor has an area of 5cm^2 and a capacitance of 3.5PF. the capacitor is connected to a 12v battery .after the capacitor is completely charge up the battery is removed. a)what must be the separation of the plates …

More Similar Questions