SSC JE Electrical 2019 with solution SET-1
 Lamp efficiency is measured in

Lumen/watt
Lux/watt
Candela/watt
Lumen/lux

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SSC JE Electrical 2019 with solution SET-1
 In a transmission line, the voltage regulation is negative whenever receiving end voltage Vs

Half of the sending end voltage
Equal to the sending end voltage
Less than the sending end voltage
Greater than the sending end voltage

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SSC JE Electrical 2019 with solution SET-1
 The laws involved in the expression e  = −dφ/dt are

Coulomb’s and Faraday’s laws
Coulomb’s and Ampere’s laws
Faraday’s and Ampere’s laws
Faraday’s and Lenz’s laws

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SSC JE Electrical 2019 with solution SET-1
 Which of the following lamps has the shortest/less life span in working hours?

Fluorescent lamp
Incandescent lamp
Sodium vapor lamp
Mercury vapor lamp

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