A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in

A. 5 Wb

B. 0.5 Tesia of flux density

C. 5x 10^-5 Wb of flux

D. 5000 Tesia of flux density

You can do it
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    When the current flowsa the magnetic field . conductor is in what direction?
  3. Which of the following is used by permanent magnets as the magnetic material?
  4. If the number of valence electrons of an atom is more than 4a the substance is called
  5. If the number of valence electrons of an atom is less than 4a then the substance is probably
  6. The magnetic materials should have a large hysteresis loss for one of the following applications.
  7. The temperature coefficient of resistance of eureka is
  8. The force which set ups or tends to set up magnetic flux in a magnetic circuit
  9. A 200-watt lamp working for 24 hours will consume approximately _____ units.
  10. Hipernik is an alloy containing __________ iron and __________ nickel.
  11. If the magnetic material is located within a coil through which alternating current (60 Hz frequency)…
  12. An effect which is generally used in the gausameter to measure flux density.
  13. A positively charged body has
  14. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  15. Electric field intensity is measured in
  16. A magnetic material losses its ferromagnetic properties at a point called
  17. The straight line passing through the two poles of magnet is called
  18. Refers to the non- metallic materials that have the ferromagnetic properties of iron.
  19. The magnetic flux through a coil changes. This results to the induced emf acting in a direction as to
  20. A theorem which states that an electric current flowing in a circuit produces a magnetic field at external…
  21. How many neutrons does a copper atom have?
  22. A negatively charge body has
  23. Magnetic effects of the earth as a huge magnet with north and south poles.
  24. The force between two magnetic poles varies with the distance between them. The variation is ______…
  25. Lenz' law states that the direction of the induced emf and hence current
  26. The temperature coefficient of resistance of insulators is
  27. The electric potential at a point in air due to a charge is 21 V. If the air is replaced by a medium…
  28. Who demonstrated the theory of electromagnetic induction in 1831?
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  30. The contribution to the ionization in an ionization chamber by electrons liberated from t he walls.