Post a New Question

physics

posted by .

1.descibe the construction and working of machine used to generate high voltage?
2.draw electric lines between the plates of a parallel plate capacitor with 1(air) and 2(dielectric) as a medium?
3.near the surface of earth the field is about 100V/m. why do we then not experience an electric shock as we go into the open?

  • physics -

    a. google van de grafe generator
    b. lines go from + to -. In a dielectric, the E is reduced.
    c. he potential of upper surface is 400KV w.r.t the Earth surface which itself has a electric field of 100V/m. Now, since we are always in contact with ground, we are at same potential with earth. However as soon we go into open, we come under influence of the atmospheric potential. But this becomes null since, the air just above our head changes its original equipotential surface keeping our body with same potential of the ground

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics parallel plate

    A proton traveling at a speed 1.0*106 m/s of enters the gap between the plates of a 2.0-cm-wide parallel-plate capacitor. The surface charge densities on the plates are 1*10^-6 C/m2. How far has the proton been deflected when it reaches …
  2. Physics

    The voltage across an air-filled parallel-plate capacitor is measured to be 219.0 V. When a dielectric is inserted and completely fills the space between the plates as in the figure below, the voltage drops to 64.4 V. What is the dielectric …
  3. 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?
  4. Physics

    A parallel-plate capacitor is constructed with circular plates of radius 0.056 m. The plates are separated by 0.25 mm, and the space between the plates is filled with dielectric with dielectric constant k. When the charge on the capacitor …
  5. 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 …
  6. Physics

    A q = +3.00 mC test charge is placed inside a constant uniform electric field created in a parallel plate capacitor connected to a battery of unknown voltage.   The capacitor is made of two parallel plates each with area equal to …
  7. Physics

    A parallel plate capacitor has a rectangular plates with length 5cm and width 3cm. They are separated by a distance 12m and hooked up to a 20V battery A.) what is the area of each plate in m^2 B.) assuming nothing else is present on …
  8. Physics

    If the electric field inside a capacitor exceeds the dielectric strength of the dielectric between its plates, the dielectric will break down, discharging and ruining the capacitor. Thus, the dielectric strength is the maximum magnitude …
  9. 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 …
  10. Physics

    A parallel-plate capacitor is constructed with circular plates of radius 5.6×10−2 m . The plates are separated by 0.27 mm , and the space between the plates is filled with a dielectric with dielectric constant κ. When the …

More Similar Questions

Post a New Question