SSC JE Electrical 2019 with solution SET-2
The type of damping used for moving iron instruments is

Air friction damping
Eddy current damping
Gravity friction damping
Fluid friction damping

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SSC JE Electrical 2019 with solution SET-2
A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?

10/2π
5/2π
1/2 π
20/2π

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SSC JE Electrical 2019 with solution SET-2
For indoor lighting the range of space : height is

5 : 6
1 : 2
3 :4
2 : 3

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