SSC JE Electrical 2019 with solution SET-2
The candle power of a lamp placed normal to a working plane is 60 CP. Find the distance if the illumination is 15 lux?

2 meters
2.5 meters
4 meters
1.5 meters

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SSC JE Electrical 2019 with solution SET-2
The scheduled speed of a train is______

Equal to maximum speed
Always greater than the average speed
Always less than the average speed
Equal to average speed

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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
20/2π
1/2 π
5/2π

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