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Electrical Materials SSC JE Quiz 2

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Question 1

The total magnetic moment
1) is called saturation magnetization.
2) depends on the number of magnetic dipoles per unit volume, the instant electric current and the area of the current loop.
Which of the above statements is/are correct?

Question 2

The magnitude of magnetic field strength H is independent of

Question 3

The resistivity of hard drawn copper at 20 °C is The resistivity of annealed copper compared to hard drawn copper is

Question 4

The number of electrons excited into the conduction band from valence band forbidden energy gap and k = Boltzmann’s constant) is proportional to

Question 5

The conductivity of insulating materials (a very small value) is called as
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