The tiniest element of matter

A. Atom

B. Proton

C. Electron

D. Neutron

You can do it
  1. ______ is an electromagnet with its core in the form of a close magnetic ring.
  2. A test charge means a charge of
  3. What determines the atomic number of an element?
  4. The physical motion resulting from the forces of magnetic fields is called
  5. The flux density in an air-cored coil is 10^-3 Wb/m^2. With a cast iron core of relative permeability…
  6. If the distance between two magnetic poles decreases by 2 timesa the force between them
  7. The force between two charges placed a given distance apart ______ as the relative permittivity of the…
  8. Hysteresis is a phenomenon of _________ in a magnetic circuit.
  9. The magnetic field inside a solenoid
  10. The phenomenon by which a magnetic substance becomes a magnet when it is place near a magnet
  11. The electric flux density is a ________ quantity.
  12. Lenz' law states that the direction of the induced emf and hence current
  13. Under ordinary conditionsa a body is considered
  14. The mass of proton is __________ the mass of an electron.
  15. Hydrogen is an example of a _____ material.
  16. How is mutual inductance between two coils decreased?
  17. What is the maximum number of electrons that can be accommodated in the last orbit of an atom?
  18. What is the usual value of leakage coefficient for electrical machines?
  19. What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
  20. When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
  21. If you hold the conductor with right hand so that the stretched thumb points in the direction of the…
  22. The emf produced in a wire by its motion across a magnetic field does not depend upon the
  23. What type of bond is formed when there exists some form of collective interactions between the (negatively…
  24. How many turns are needed to produce a magnetomotive force of 1000 A.t for a coil with 6 amperes?
  25. Hipernik is an alloy containing __________ iron and __________ nickel.
  26. A factor used to correct for the electrostatic forces of the more distant ions in an ionic solid.
  27. Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
  28. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  29. A PHP Error was encountered

    Severity: Notice

    Message: iconv_strlen(): Detected an illegal character in input string

    Filename: compat/mbstring.php

    Line Number: 77


    File: /var/www/html/application/views/discuss.php
    Line: 226
    Function: character_limiter

    File: /var/www/html/application/helpers/viewloader_helper.php
    Line: 1359
    Function: view

    File: /var/www/html/application/controllers/Questions.php
    Line: 484
    Function: load_guest

    File: /var/www/html/index.php
    Line: 315
    Function: require_once

    If the resistance of a material 2 m long and 2 m^2 in area of cross-section is 1.6 10^-8 ?a then its resistivity is
  30. Electron is a Greek word for