SSC JE Electrical 2019 with solution SET-2
Which of the following lamps is used s a sign or an indicator lamp?

Incandescent lamp
Neon lamp
Halogen lamp
Fluorescent lamp

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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?

5/2π
1/2 π
20/2π
10/2π

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