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

Incandescent lamp
Sodium vapor lamp
Fluorescent lamp
Mercury vapor lamp

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-1
Find H = _____ A/m at the center of a circular coil of diameter 1 m and carrying a current of 2A

1 A/m
4 A/m
2 A/m
8 A/m

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP