Q1 of 26 Page 1

Define dielectric constant of a medium. What is its S.I. unit?

Dielectric constant of a medium is basically the relative permittivity, i.e. ratio of permittivity of the medium with respect to permittivity in free space. Its SI unit is farad per meter or Fm-1.


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2

V – I graph for a metallic wire at two different temperatures T1 and T2 is as shown in the figure. Which of the two temperatures is higher and why?

1.PNG


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