SSC JE Electrical 2019 with solution SET-1
 If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

dΦ − dA
dA ⁄ dΦ
dΦ ⁄ dA
Φ × A

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SSC JE Electrical 2019 with solution SET-1
 In the full-wave rectifier circuit shown in the figure, the diodes that conduct when the positive half-wave of AC signal applied are

D2, D3
D3, D4
D1, D2
D4, D1

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SSC JE Electrical 2019 with solution SET-1
 The ratio of conductor voltage and the voltage across the disc nearest to the conductor multiplied by the number discs are

Insulator efficiency
String efficiency
Transmission line efficiency
Disc efficiency

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